(BBC comedy special, 1972)

The 1971 Morecambe and Wise Christmas Show features Eric and Ernie in one of the most inspired sketches the duo ever produced. Eric plays piano and internationally-renowned musician and conductor Andre Previn conducts the orchestra. The result is one of the funniest comedy sketches ever.
The 1972 show has a cameo by Mr Previn conducting London Transport AEC Routemaster RM391 (WLT391), blinded for route 88: