[quote name='spacey' timestamp='1392842278' post='2373475']
Top of the pops was pre-recorded recreated tracks in studio and then mimed or just the vocals live.
[/quote]
Not in this instance apparently. The cameraman who kept the only tape copy of this performance and who also happens to be a friend tells me that it was a fully live performance mixed in the studio by Dickie Chamberlain. His camera was fitted with a prototype fisheye lens, a product he was developing. He asked for a copy of the performance in order to demonstrate his lens and the tape stayed in his archive until it was rediscovered in 2012. Good job he did otherwise this particular performance would have been lost forever as the BBC accountants decided they could save money by wiping and re-using tapes, which at £200 a reel was, to them, a significant saving.