Mixtures, Showstoppers and Four Seasons have turned up on TOTP2 before now. Here's my contribution to the list (not all are at the Beeb but I've seen a lot of them myself) All of these goodies from the first two years of the 70s alone!
12-2-70: HERMAN’S HERMITS – Years May Come And Years May Go
26-3-70: THE WHO – The Seeker
7-5-70: RICHARD BARNES – Take To The Mountains
21-5-70: TONY JOE WHITE – Groupie Girl
18-6-70: CLIFF RICHARD – Goodbye Sam Hello Samantha
18-6-70: LULU – Hum A Song
9-7-70: PICKETTYWITCH – (It’s Like A) Sad Old Kinda Movie
16-7-70: SHIRLEY BASSEY – Something
3-9-70: THE TREMELOES – Me And My Life
10-9-70: DUSTY SPRINGFIELD – How Can I Be Sure
10-9-70: BOBBY BLOOM – Montego Bay
15-10-70: CHRISTIE – San Bernadino
15-10-70: RICHARD BARNES – Go North
31-12-70: THE WHO – I Don’t Even Know Myself
31-12-70: THE WHO – Naked Eye14-1-71: LULU – You’ve Got To Believe In Love
14-1-71: BADFINGER – Believe Me
14-1-71: BADFINGER – Better Days
21-1-71: PETULA CLARK – The Song Of My Life
21-1-71: NEIL DIAMOND – Cracklin’ Rosie
4-2-71: CLIFF RICHARD – Sunny Honey Girl
11-3-71: LYNN ANDERSON – Rose Garden
1-4-71: FAME & PRICE TOGETHER – Rosetta
13-5-71: THE HOLLIES – Hey Willy
11-11-71: CILLA BLACK – Something Tells Me (Something Is Gonna Happen Tonight)
2-12-71: MIDDLE OF THE ROAD – Soley Soley