I have been buying the Morecambe & Wise series as and when they are released and have not come across it yet.

Does anyone know what series it was?

The Morecambe and Wise Show (BBC)
Broadcast date: 19/04/1976 Recorded date: Unknown
Series: 9 Episode: 6
Broadcast time: Unknown Running time: 45 Mins
Guests: Diane Solomon, Maggie Fitzgibbon, Champagne
Sketches: Freedom of the city, Immigration office, Calculator shop, Breakfast stripper, Bank hold up, Magazine interview
Script: Eddie Braben

http://www.morecambeandwise.com/