Episode 1 of the Ronnie Barker anthology series of pilots, Seven of One.
Granville tells Arkwright that he's been told that Nurse Gladys Emmanuel's car has been seen parked outside another man's house every night. Arkwright is consumed by jealousy and worries about it all day.
That evening, Arkwright decides to tackle Nurse Gladys about her nocturnal visits. He pretends to have hurt his arm and goes to visit her. She sees through his ruse and gives him something unpleasant to drink. He finally tells her what he's really come about. She explains that she's been visiting her sister and there's nowhere to park her car outside her sister's house.
Granville takes a fancy to a young lady petrol pump attendant. He bemoans the fact that he has to use a shop bike when he'd rather have a van to drive. He's also depressed about the fact that working all hours in the shop doesn't leave him any time for a social life.
One of numerous short sketches from various sitcoms and sketch shows of the time, each interspersed with the repartee of host Frank Muir in this one-off special, The Funny Side of Christmas.
It is Christmas morning, and we learn that Granville and Arkwright are invited to Nurse Gladys's flat for dinner. Granville is looking forward to it, but Arkwright's anticipation is tempered by the knowledge that Gladys's mother will be there.