ITV LWT | Singles episode and continuity | 5th May 1991 

© ITVplc/LONDON WEEKEND TELEVISION 1991
Those swinging hospital doors at 14:15 onwards are DEFINITELY the same ones used in the opening titles of Only When I Laugh, another Eric Chappell/Yorkshire Television sitcom.
End of Spitting Image (Central)
ITV trailer: The Holcroft Covenant
ITV LWT slide: Singles
Advert: BMW 3-series
ITV trailer: Secrets of the Sea
LWT trailer: Six O'Clock Live
ITV LWT ident: Singles (Yorkshire)