Robin's brother Norman comes to stay for two days, and he takes a shine to Chrissy...

Robin has been picked to play in a college football match. A few days before the game, he goes down with a bad cold. Chrissy and Jo rally round in an attempt to help him to recover in time to play.

Jo is going on a date with Philip, but has forgotten that she is meant to be babysitting. Chrissy agrees to take her place and persuades Robin to come along, but when they arrive, it looks as if he is going to regret his decision as the TV is being repaired and the drinks cabinet is locked.

Robin has to spend the night with Roper while his friend, Jerry, rids his flat of woodworm.

Roper raises the rent, and the flatmates need to find a fourth roomie to help pay it off.

Robin loses his self-esteem after being unable to defend himself to a mean Irishman at the pub. Chrissy and Jo try to make him feel better, but he decides he will take on the guy the next time he sees him...

Chrissy replaces Robin in a poker game while he is away getting his tonsils removed. All she has to do now is learn how to play the game!

Robin gets a job as a door-to-door encyclopedia salesman, and needs some help.

George receives a huge gas bill and decides to open up his chimney, but it needs to be swept so he gets a gadget from Jerry to suck out the soot. Meanwhile, things have moved on considerably with Norman and Chrissy, which makes Robin jealous...

The rent is due and the money put aside to pay it has disappeared from the flat. Robin, Chrissy and Jo have to find a way of getting some cash quickly.

Robin acquires a puppy. The lease on the flat says 'no pets', so Roper mustn't find out.

Mr. Roper has had a grudge against Germans since the war. Chrissy makes the mistake of inviting him over for a meal with Robin and his German friend, Franz...

Robin doesn't fit in at Chrissy and Jo's work party.

Chrissy's mother visits the flat again, intent on getting her daughter together with Robin.

While the flatmates compete to get the flat to themselves to entertain friends, George is trying to find jobs to avoid Mildred.

To please Mildred Roper, Robin goes on a dancing date with her while George decides to stay at home. However, George things something might happen between the two.

Larry drives everyone crazy while living in the flat. Robin, Chrissy and Jo try to find him a place to stay, but where to look ?

Mildred leaves for the weekend. George takes advantage of this by trying to trick Robin, Chrissy and Jo into leaving the flat.

George has a hard time getting the piano he sold to Robin upstairs.

Chrissy gets some tickets to see Frank Sinatra in concert - she doesn't want them, but Jo and Robin certainly do! Also, it is George and Mildred's anniversary.

Robin and Chrissy's party is cancelled by George, which leads to a dispute. It gets so bad that Mildred finally leaves him. Can George get Mildred back?

Chrissy's mother is about to pay a visit. She doesn't know Robin is living in the flat, so he's told to make himself scarce, but as she's staying the night, where will he sleep ?

Jo's new boyfriend is coming to the flat for a meal. Robin is persuaded to cook, then leave with Chrissy to spend the evening playing monopoly with the Ropers. They learn that Jo's boyfriend is Jewish - and Robin has cooked roast pork for their meal!

Robin, Chrissy and Jo take advantage of the Ropers being away by having a party!

Chrissy is upset when Robin begins a relationship with an old friend of hers.