Just recently recovered from the monster's vaults, Pan's People dancing to Deep Purple's "Black Night" (quite a literal routine I have to say):
At the same time it was disclosed that Pan's People danced an almost identical routine to the Trammps' "The Night The Lights Went Out". Rumours about a similar dance to the Hollies' "Long Dark Road" are still unconfirmed though.
I think the BBC better show it on BBC 4 HD to prove it. But as there's no chance whatsoever of that happening I would have agree with green and blue having watched it once or twice or maybe twenty times.