I have just bought a dvd of ITV's 1972 & 1973 "All Star Comedy Carnival". which, although I don't particularly remember it, appears to be their equivalent to BBC's "Christmas Night with the Stars".
Contains special seasonal shows of: Love Thy Neighbour; On The Buses; Nearest & Dearest; Thirty Minutes Worth; Sez Les; The Fenn Street Gang; Father Dear Father; Man About The House; My Good Woman; Billy Liar; Spring & Autumn; Doctor In Charge; Christmas with Wogan. Also contains the 1969 sketch from the same show of The Dustbinmen.
174 minutes for £6.99:
Haven't watched it yet so don't take this as a recommendation. Just thought I'd mention it before it was too late.