Thanks for that tip.
Does anyone recall the Beatles appearing on that show, in possibly their last time there? They were headlining it by then, but the show started with the curtains opening on the Fab Four in silhouette, and the audience started screaming in delight, but then the stage lights came on and we saw it was just Bruce Forsyth and three others with brooms and a collection of dustbins about to clean the stage. My father, who was worried about all this idolisation of pop stars, thought it was hilarious, as did I, but it was unhip to think so at the time.