The Ultimate Averaged Chart - The BBC Chart Re-Imagined

[MrTibbs]

Greetings Pop Pickers !

Here is the next Ultimate Averaged Chart for Week Ending November 9th 1957

Here are all '' the uppers, the downers, the just hanging 'arounders '

The Ultimate Averaged Chart - Week Ending November 9th 1957							NME	MM	RM	Total
Last	This		The Sound Survey			Stores	65	25	60	Points
Week	Week		The Top 30 Singles Chart					TOP	30	Scored
1	1	That'll Be The Day - The Crickets					1	1	1	4500
3	2	Party - Elvis Presley (A)					2	2	2	4350
2	3	Tammy - Debbie Reynolds					3	3	3	4200
4	4	Diana - Paul Anka					4	4	4	4050
5	5	Remember You're Mine / There's A Goldmine In The Sky - Pat Boone					5	5	5	3900
7	6	Be My Girl - Jim Dale					7	6	6	3685
6	7	Man On Fire / Wandering Eyes - Frankie Vaughan					6	7	7	3665
17	8	Gotta Have Something In The Bank Frank - Frankie Vaughan and The Kaye Sisters					8	8	8	3450
8	9	Whole Lotta Shakin' Goin' On - Jerry Lee Lewis					9	9	9	3300
16	10	My Dixie Darling - Lonnie Donegan					10	11	10	3125
9	11	Wandering Eyes - Charlie Gracie					11	10	16	2725
NEW	12	I Love You Baby - Paul Anka (A)					16	13	12	2565
11	13	Teddy Bear - Elvis Presley					15	12	14	2535
10	14	Water Water / A Handful Of Songs - Tommy Steele					13	19	15	2430
14	15	With All My Heart - Petula Clark					14	16	17	2320
13	16	Love Letters In The Sand - Pat Boone					12		13	2315
12	17	Island In The Sun - Harry Belafonte					19	14	18	1985
23	18	Lawdy Miss Clawdy - Elvis Presley (A)					20		11	1915
15	19	Last Train To San Fernando - Johnny Duncan and The Blue Grass Boys					18	15	20	1905
NEW	20	Wake Up Little Susie - The Everly Brothers					21	17	19	1720
19	21	Got A Lot O' Livin' To Do - Elvis Presley (B)					17	17		1260
20	22	Call Rosie On The Phone - Guy Mitchell					24	20		730
NEW	23	Mary's Boy Child - Harry Belafonte					21			650
26	24	Trying To Get To You - Elvis Presley (B)					23			520
18	25	All Shook Up - Elvis Presley					25			390
22	26	Stardust - Billy Ward and The Dominoes					26			325
21	27	Short Fat Fannie - Larry Williams					27			260
NEW	28	Tell Me That You Love Me - Paul Anka (B)					28			195
25	29	He's Got The Whole World In His Hands - Laurie London					29			130
28	30	Loving You - Elvis Presley					30			65
24		Honeycomb - Jimmie Rodgers
27		Paralysed - Elvis Presley
29		Wedding Ring - Russ Hamilton
30		Stardust - Nat King Cole

[Splodj]

I think if NME has a tie at 9 & 10 this means we should be looking at combining the average for 10 & 11, because the combined sales for number 3 is the output not an input. So for example in week 17, a combined number 3 would have been the record selling 6% and NME's declared number 3 would be selling only 4.75%.

This doesn't make much difference in this case, but will when one of the sides is near the top.

[RokinRobinOfLocksley]

Combining split record sides part 3: here's a repeat of the above BMRB table, but with chart position vs. % of Top 50 record sales, for those 4 weeks in 1976.

In this case, chart positions #1 and #2 are still radically off when comparing weeks 14 vs. 17, but after that the %'s are much closer.

But either way, using my prior example of The Yardbirds split single in NME at #9 and #10, the combination (using these tables, if one could use these tables) is still closest to chart position #3.

Interesting, fascinating...

Chart Position vs. % of Top 50 Sales
chart	week 17	week 16	week 15	week 14
position	May 8, 1976	May 1, 1976	April 24, 1976	April 17, 1976	avg %	hi - lo %
1	7.93%	10.34%	13.71%	18.11%	12.52%	10.18%
2	7.20%	8.88%	9.56%	6.89%	8.13%	2.67%
3	6.00%	5.90%	5.31%	5.46%	5.67%	0.69%
4	4.75%	4.18%	5.10%	4.86%	4.72%	0.91%
5	4.18%	3.92%	4.36%	4.36%	4.20%	0.44%
6	3.96%	3.70%	3.58%	3.87%	3.78%	0.38%
7	3.58%	3.34%	3.49%	3.83%	3.56%	0.49%
8	3.05%	3.34%	3.47%	3.24%	3.27%	0.42%
9	2.98%	3.24%	3.06%	2.89%	3.04%	0.35%
10	2.87%	2.99%	2.96%	2.83%	2.91%	0.16%
11	2.81%	2.90%	2.76%	2.77%	2.81%	0.14%
12	2.63%	2.90%	2.33%	2.56%	2.60%	0.56%
13	2.58%	2.60%	2.33%	2.39%	2.47%	0.27%
14	2.53%	2.47%	2.23%	2.22%	2.36%	0.31%
15	2.40%	2.31%	2.12%	2.05%	2.22%	0.34%
16	2.39%	2.31%	2.01%	1.88%	2.15%	0.51%
17	2.38%	1.97%	1.90%	1.72%	1.99%	0.66%
18	2.19%	1.86%	1.73%	1.70%	1.87%	0.50%
19	1.92%	1.74%	1.57%	1.63%	1.71%	0.35%
20	1.79%	1.73%	1.36%	1.57%	1.61%	0.44%
21	1.74%	1.50%	1.34%	1.54%	1.53%	0.40%
22	1.59%	1.49%	1.32%	1.36%	1.44%	0.27%
23	1.43%	1.43%	1.28%	1.18%	1.33%	0.26%
24	1.35%	1.39%	1.25%	1.12%	1.28%	0.27%
25	1.33%	1.34%	1.21%	1.07%	1.24%	0.27%
26	1.31%	1.32%	1.18%	1.06%	1.22%	0.26%
27	1.30%	1.31%	1.02%	1.03%	1.17%	0.30%
28	1.23%	1.29%	1.00%	1.01%	1.13%	0.29%
29	1.23%	1.18%	0.98%	0.98%	1.09%	0.25%
30	1.22%	1.11%	0.96%	0.95%	1.06%	0.27%
31	1.14%	1.09%	0.94%	0.87%	1.01%	0.27%
32	1.09%	1.07%	0.91%	0.84%	0.98%	0.25%
33	1.01%	1.03%	0.87%	0.81%	0.93%	0.21%
34	1.01%	1.02%	0.83%	0.78%	0.91%	0.23%
35	1.00%	0.91%	0.80%	0.75%	0.87%	0.25%
36	0.92%	0.89%	0.79%	0.72%	0.83%	0.19%
37	0.88%	0.83%	0.77%	0.70%	0.79%	0.18%
38	0.84%	0.76%	0.74%	0.67%	0.75%	0.17%
39	0.82%	0.70%	0.72%	0.64%	0.72%	0.18%
40	0.79%	0.69%	0.72%	0.61%	0.70%	0.18%
41	0.78%	0.69%	0.70%	0.59%	0.69%	0.20%
42	0.76%	0.65%	0.68%	0.56%	0.66%	0.20%
43	0.74%	0.61%	0.67%	0.50%	0.63%	0.24%
44	0.72%	0.56%	0.60%	0.45%	0.58%	0.28%
45	0.70%	0.50%	0.53%	0.43%	0.54%	0.27%
46	0.67%	0.45%	0.47%	0.42%	0.50%	0.26%
47	0.61%	0.43%	0.45%	0.41%	0.47%	0.19%
48	0.56%	0.40%	0.45%	0.40%	0.45%	0.16%
49	0.55%	0.37%	0.44%	0.39%	0.44%	0.18%
50	0.54%	0.37%	0.43%	0.35%	0.42%	0.19%
sum 1-50	100%	100%	100%	100%	100%

[RokinRobinOfLocksley]

Combining split record sides part 2: I thought I'd post for you all a modified version of the BMRB table in Michael Cable's book, showing chart position vs. record sales for 4 weeks in 1976. Shaded numbers weren't given in the book, so I interpolated them.

So we can play the what if game of combining split sides and seeing where they might end up. But as each week is unique, it's just a loose approximation. Compare the relative sales of the records at #1 and #2 of week 14 vs. week 17, quite a difference there. And quite a difference in total Top 50 sales, 55K vs. 43K. I'll post a % table too, as that gives more insight.

Chart Position vs. Sales
chart	week 17	week 16	week 15	week 14	weeks 14-17
position	May 8, 1976	May 1, 1976	April 24, 1976	April 17, 1976	avg sales
1	3442	5316	7416	10053	6557
2	3128	4566	5171	3825	4173
3	2606	3034	2871	3032	2886
4	2061	2151	2757	2695	2416
5	1814	2015	2356	2419	2151
6	1721	1902	1938	2148	1927
7	1556	1718	1887	2128	1822
8	1324	1716	1876	1799	1679
9	1293	1664	1656	1605	1555
10	1245	1535	1599	1571	1488
11	1219	1492	1495	1536	1436
12	1141	1489	1262	1420	1328
13	1121	1336	1258	1326	1260
14	1098	1272	1208	1233	1203
15	1040	1189	1148	1139	1129
16	1039	1186	1088	1046	1090
17	1032	1015	1028	952	1007
18	953	957	938	942	948
19	834	892	848	906	870
20	779	891	735	870	819
21	756	769	726	854	776
22	691	768	715	754	732
23	623	737	695	654	677
24	587	715	676	623	650
25	578	688	656	592	629
26	567	680	641	590	620
27	565	675	550	574	591
28	536	664	540	559	575
29	534	607	530	543	554
30	530	569	520	527	537
31	495	559	509	482	511
32	473	548	490	466	494
33	440	527	471	450	472
34	439	522	451	434	462
35	434	469	431	418	438
36	399	458	426	402	421
37	381	425	414	386	402
38	364	391	402	370	382
39	355	358	390	354	364
40	345	357	387	339	357
41	340	355	379	325	350
42	331	335	370	310	337
43	323	315	365	279	321
44	314	286	326	248	294
45	303	258	286	237	271
46	293	229	254	233	252
47	263	219	242	228	238
48	243	208	241	221	228
49	237	189	240	218	221
50	234	188	235	193	213
sum 1-50	43419	51404	54093	55508	51106

[MrTibbs]

Yeah I noticed that too, MM is well out of step here with the other two charts.

[Splodj]

I wonder if there was some double counting involved for MM to put Party & Livin' at 1 & 8, considering they were 4 & 21 in NME.

[MrTibbs]

Yeah Elvis is steamrollering everything in his way with release after release to satisfy demand.

I love the Jim Dale single, my dad had it on the old red Parlophone label 78 it became ingrained in my memory and I've loved it ever since.

[Robbie]

8 Elvis songs in the UAC! Good job there was no three track rule back then...

Future Carry On star Jim Dale suddenly sees his 'Be My Girl' single burst into life after a few weeks of slow upward movement. It's another George Martin production.

[MrTibbs]

Greetings Pop Pickers !

Here is the next Ultimate Averaged Chart for Week Ending November 2nd 1957

Here are all '' the uppers, the downers, the just hanging 'arounders '

The Ultimate Averaged Chart - Week Ending November 2nd 1957							NME	MM	RM	Total
Last	This		The Sound Survey			Stores	65	25	60	Points
Week	Week		The Top 30 Singles Chart					TOP	30	Scored
2	1	That'll Be The Day - The Crickets					1	2	1	4475
4	2	Tammy - Debbie Reynolds					2	3	3	4265
3	3	Party - Elvis Presley (A)					4	1	2	4245
1	4	Diana - Paul Anka					3	4	4	4115
7	5	Remember You're Mine / There's A Goldmine In The Sky - Pat Boone					5	5	5	3900
13	6	Man On Fire / Wandering Eyes - Frankie Vaughan					6	6	6	3750
18	7	Be My Girl - Jim Dale					7	9	7	3550
9	8	Whole Lotta Shakin' Goin' On - Jerry Lee Lewis					8	10	8	3400
6	9	Wandering Eyes - Charlie Gracie					11	7	10	3160
12	10	Water Water - A Handful Of Songs - Tommy Steele					9	13	12	3020
8	11	Teddy Bear - Elvis Presley					12	11	11	2935
10	12	Island In The Sun - Harry Belafonte					10	12	13	2920
5	13	Love Letters In The Sand - Pat Boone					13	17	9	2840
11	14	With All My Heart - Petula Clark					14	18	14	2450
14	15	Last Train To San Fernando - Johnny Duncan and The Blue Grass Boys					16	15	16	2275
15	16	My Dixie Darling - Lonnie Donegan					15		15	2000
NEW	17	Gotta Have Something In The Bank Frank - Frankie Vaughan and The Kaye Sisters					22		17	1425
16	18	All Shook Up - Elvis Presley					16	16		1350
20	19	Got A Lot O' Livin' To Do - Elvis Presley (B)					21	8		1225
17	20	Call Rosie On The Phone - Guy Mitchell					18			845
23	21	Short Fat Fannie - Larry Williams					23	18		845
22	22	Stardust - Billy Ward and The Dominoes					19			780
NEW	23	Lawdy Miss Clawdy - Elvis Presley (A)							18	780
NEW	24	Honeycomb - Jimmie Rodgers					30		20	725
NEW	25	He's Got The Whole World In His Hands - Laurie London							19	720
NEW	26	Trying To Get To You - Elvis Presley (B)					20			715
19	27	Paralysed - Elvis Presley					26	18		650
NEW	28	Loving You - Elvis Presley					24			455
21	29	Wedding Ring - Russ Hamilton					25			390
24	30	Stardust - Nat King Cole					27			260
30		In The Middle Of An Island - The King Brothers					28			195
		Mary's Boy Child - Harry Belafonte					29			130
		Wandering Eyes - Frankie Vaughan						14
		Water Water - Tommy Steele						18
25		Up Above My Head / Good Evening Friends - Frankie Laine and Johnnie Ray
26		Any Old Iron - Peter Sellers
27		Blue Blue Heartaches - Johnny Duncan and The Blue Grass Boys
28		My Personal Possession - Nat King Cole
29		Bye Bye Love - The Everly Brothers

[MrTibbs]

Greetings Pop Pickers !

Here is the next Ultimate Averaged Chart for Week Ending October 26th 1957

Here are all '' the uppers, the downers, the just hanging 'arounders '

The Ultimate Averaged Chart - Week Ending October 26th 1957							NME	MM	RM	Total
Last	This		The Sound Survey			Stores	65	25	60	Points
Week	Week		The Top 30 Singles Chart					TOP	30	Scored
1	1	Diana - Paul Anka					1	1	2	4440
2	2	That'll Be The Day - The Crickets					3	2	1	4345
4	3	Party - Elvis Presley (A)					2	3	3	4265
3	4	Tammy - Debbie Reynolds					4	4	4	4050
5	5	Love Letters In The Sand - Pat Boone					5	6	6	3815
8	6	Wandering Eyes - Charlie Gracie					6	5	7	3715
11	7	Remember You're Mine / There's A Goldmine In The Sky - Pat Boone					8	8	5	3630
16	8	Teddy Bear - Elvis Presley					9	16	8	3185
15	9	Whole Lotta Shakin' Goin' On - Jerry Lee Lewis					10	7	11	3165
7	10	Island In The Sun - Harry Belafonte					7	13	12	3150
9	11	With All My Heart - Petula Clark					11	11	10	3060
10	12	Water Water / A Handful Of Songs - Tommy Steele					12	13	9	3005
14	13	Man On Fire / Wandering Eyes - Frankie Vaughan					13		13	2700
6	14	Last Train To San Fernando - Johnny Duncan and The Blue Grass Boys					15	9	15	2550
12	15	My Dixie Darling - Lonnie Donegan					14	15	14	2525
13	16	All Shook Up - Elvis Presley					16	10	16	2400
18	17	Call Rosie On The Phone - Guy Mitchell					17	20	17	2025
19	18	By My Girl - Jim Dale					19	18	19	1825
17	19	Paralysed - Elvis Presley					20		18	1495
21	20	Got A Lot O' Livin' To Do - Elvis Presley (B)					20	11		1215
20	21	Wedding Ring - Russ Hamilton					23		20	1180
22	22	Stardust - Billy Ward and The Dominoes					18			845
25	23	Short Fat Fannie - Larry Williams					22			585
NEW	24	Stardust - Nat King Cole					24			455
27	25	Up Above My Head / Good Evening Friends - Frankie Laine and Johnnie Ray					25			390
25	26	Any Old Iron - Peter Sellers					26			325
NEW	27	Blue Blue Heartaches - Johnny Duncan and The Blue Grass Boys					27			260
23	28	My Personal Possession - Nat King Cole					28			195
24	29	Bye Bye Love - The Everly Brothers					29			130
29	30	In The Middle Of An Island - The King Brothers					30			65
		Man On Fire - Frankie Vaughan						17
		Wandering Eyes - Frankie Vaughan						19
28		I'm Gonna Sit Right Down And Write Myself A Letter - Billy Williams
30		Build Your Love - Johnnie Ray

[MrTibbs]

Did RM also separate 'Party'?

If so, in the coming charts it will be interesting to see how likely it is 'Party' would have topped NME and RM if combined. (I realise it topped MM anyway.)

I don't think so Splodj. Although they ever only listed 'Let's Have A Party' they never charted 'Got A Lot.....' so I take it from that they combined sides. From what I can see all along RM split singles much less than MM or NME.

[Splodj]

Did RM also separate 'Party'?

If so, in the coming charts it will be interesting to see how likely it is 'Party' would have topped NME and RM if combined. (I realise it topped MM anyway.)

[MrTibbs]

As mentioned a couple of days ago The Crickets suddenly make their move and strongly move from #8 to #2, but, they are looking over their shoulder because Elvis is closing in too

[MrTibbs]

Greetings Pop Pickers !

Here is the next Ultimate Averaged Chart for Week Ending October 19th 1957

Here are all '' the uppers, the downers, the just hanging 'arounders '

The Ultimate Averaged Chart - Week Ending October 19th 1957							NME	MM	RM	Total
Last	This		The Sound Survey			Stores	65	25	60	Points
Week	Week		The Top 30 Singles Chart					TOP	30	Scored
1	1	Diana - Paul Anka					1	1	1	4500
8	2	That'll Be The Day - The Crickets					2	3	2	4325
3	3	Tammy - Debbie Reynolds					3	2	3	4225
9	4	Party - Elvis Presley (A)					5	4	4	3985
2	5	Love Letters In The Sand - Pat Boone					4	7	5	3915
4	6	Last Train To San Fernando - Johnny Duncan and The Blue Grass Boys					7	6	6	3685
6	7	Island In The Sun - Harry Belafonte					6	8	8	3580
5	8	Wandering Eyes - Charlie Gracie					9	5	7	3520
11	9	With All My Heart - Petula Clark					8	9	12	3185
7	10	Water Water / A Handful Of Songs - Tommy Steele					11	11	9	3120
15	11	Remember You're Mine / There's A Goldmine In The Sky - Pat Boone					10	13	10	3075
17	12	My Dixie Darling - Lonnie Donegan					14	17	11	2655
10	13	All Shook Up - Elvis Presley					15	12	13	2595
18	14	Man On Fire / Wandering Eyes - Frankie Vaughan					12	14	16	2560
14	15	Whole Lotta Shakin' Goin' On - Jerry Lee Lewis					16	9	14	2545
13	16	Teddy Bear - Elvis Presley					13		15	2130
12	17	Paralysed - Elvis Presley					17	16	17	2125
26	18	Call Rosie On The Phone - Guy Mitchell					17		18	1690
24	19	Be My Girl - Jim Dale					23	19	20	1480
20	20	Wedding Ring - Russ Hamilton					20		19	1435
NEW	21	Got A Lot O' Livin' To Do - Elvis Presley (B)					19	15		1180
23	22	Stardust - Billy Ward and His Dominoes					23	20		795
NEW	23	My Personal Possession - Nat King Cole					21			650
16	24	Bye Bye Love - The Everly Brothers					22			585
21	25	Any Old Iron - Peter Sellers					25			390
22	25	Short Fat Fannie - Larry Williams					25			390
29	27	Up Above My Head - Good Evening Friends - Frankie Laine and Johnnie Ray					27			260
RE	28	I'm Gonna Sit Right Down And Write Myself A Letter - Billy Williams					28			195
25	29	In The Middle Of An Island - The King Brothers					29			130
27	30	Build Your Love - Johnnie Ray					30			65
		Water Water - Tommy Steele						18
19		Jenny Jenny - Little Richard
27		Gamblin' Man / Putting On The Style - Lonnie Donegan
30		Scarlet Tibbons - Harry Belafonte

[MrTibbs]

Hello Mr. Tibbs, I see that you have 2 no.21s in the October 12th chart. However, Peter Sellers is at a higher position in NME. Don't you normally use this to split songs with the same points?

Yip. I do use NME at this point for splitting ties as it currently uses the largest store sample. From July 1960 onwards this switches to MM who by then use the largest sample. I have therefore corrected the above tie. Thanks brain

[braindeadpj]

Hello Mr. Tibbs, I see that you have 2 no.21s in the October 12th chart. However, Peter Sellers is at a higher position in NME. Don't you normally use this to split songs with the same points?

[braindeadpj]

It's a shame that All Shook Up didn't enter at no.6 on the UAC as it would then have been at every position within the top 10 as it falls to 10 this week!

[membranemusic]

Thanks Robbie and Lonnie for your 4156 and 4157 posts. I had seen but not kept a note of a previous version of this proportional re-calculation. Trouble was, back in the 70s when there were no computers or spreadsheets to help us out, my weekly mental arithmetical struggles with the straight average charts would have blown a fuse with inclusion of such a formula. So thanks a mill [proportion thereof]

[MrTibbs]

Greetings Pop Pickers !

Here is the next Ultimate Averaged Chart for Week Ending October 12th 1957

Here are all '' the uppers, the downers, the just hanging 'arounders '

The Ultimate Averaged Chart - Week Ending October 12th 1957							NME	MM	RM	Total
Last	This		The Sound Survey			Stores	65	25	60	Points
Week	Week		The Top 30 Singles Chart					TOP	30	Scored
1	1	Diana - Paul Anka					1	1	1	4500
3	2	Love Letters In The Sand - Pat Boone					2	3	2	4325
6	3	Tammy - Debbie Reynolds					3	2	3	4225
2	4	Last Train To San Fernando - Johnny Duncan and The Blue Grass Boys					4	5	4	4025
7	5	Wandering Eyes - Charlie Gracie					7	4	6	3735
4	6	Island In The Sun - Harry Belafonte					5	7	9	3610
5	7	Water Water / A Handful Of Songs - Tommy Steele					6	7	8	3605
10	8	That'll Be The The Day - The Crickets					9	10	5	3515
17	9	Party - Elvis Presley					11	7	7	3340
9	10	All Shook Up - Elvis Presley					10	6	10	3250
8	11	With All My Heart - Petula Clark					7	13	11	3210
11	12	Paralysed - Elvis Presley					12	11	13	2815
12	13	Teddy Bear - Elvis Presley					12	15	14	2655
15	14	Whole Lotta Shakin' Goin' On - Jerry Lee Lewis					16	13	12	2565
16	15	Remember You're Mine / There's A Goldmine In The Sky - Pat Boone					15	19	16	2240
18	16	Bye Bye Love - The Everly Brothers					18	15	17	2085
NEW	17	My Dixie Darling - Lonnie Donegan					19	19	15	2040
22	18	Man On Fire / Wandering Eyes - Frankie Vaughan					14		19	1825
13	19	Jenny Jenny - Little Richard					20	17	20	1725
29	20	Wedding Ring - Russ Hamilton					25		18	1170
23	21	Any Old Iron - Peter Sellers					17			910
19	22	Short Fat Fannie - Larry Williams					22	18		910
14	23	Stardust - Billy Ward and The Dominoes					21			650
NEW	24	Be My Girl - Jim Dale					23			520
20	25	In The Middle Of An Island - The King Brothers					24			455
NEW	26	Call Rosie On The Phone - Guy Mitchell					26			325
21	27	Gamblin' Man / Putting On The Style - Lonnie Donegan					27			260
25	27	Build Your Love - Johnnie Ray					27			260
29	29	Up Above My Head / Good Morning Friends - Frankie Laine and Johnnie Ray					29			130
26	30	Scarlet Ribbons - Harry Belafonte					30			65
		A Handful Of Songs - Tommy Steele						9
		Water Water - Tommy Steele						12
24		We Will Make Love - Russ Hamilton
27		Passing Strangers - Billy Eckstine and Sarah Vaughan
28		I Sit At My Window - Johnny Gavin

[kingofskiffle]

I've done the change over in Jan 1957, as that's when more and more records where also 45 and 78, but I could find none that where only 78. It seemed a logical time as well.

[Splodj]

Looking down the BBC composite Top 3s (on Popscene) it appears they got even one of those wrong ...

26-Jan 58:
1. Jailhouse Rock = 5 points
2. Great Balls Of Fire = 8 points
3. Ma He's Making Eyes At Me = 7 points
-------

I would think that by this time (October 1957) the majority of singles were sold as 45s.

From googling I can see that in the UK the first 45s were released in 1953 and the last 78s in 1960, but not when the crossover happened.

[MrTibbs]

They didn't agree for long

[Splodj]

Talking of the BBC, it was about this time that Pick Of The Pops changed to be being a chart based show. Difficult to know how much this boosted interest amongst the general public in the charts, but I suspect a lot.

The first show in the new format was broadcast on Sunday 29th September 1957 reflecting the w/e 28-Sep-57 charts. So the first BBC Composite Top 3 was easy to calculate, as all 3 charts agreed on them.

[brian05]

All shook up and Paralyzed were on HMV.
Teddy Bear and Party were on RCA.

The last HMV Elvis single will be in February 1958, then RCA remined his only label.

[kingofskiffle]

But they wouldn't have been hearing all the time - at least not on the BBC!