Flat sitcoms.

[Fniff]

You know the type. Spaced,full house (That we shall not speak of) I love Cthulthu... The list is endless. A flat sitcom is about a (Place type of being here) living with a (Place type of being here) in a flat(Or apartment) in (Place City here)

What is your idea for a Flat sitcom?

 

[Katherine Kerensky]

exactly as you described it OP, I believe.
i don't really watch them.
I've seen a few eps of Friends (if that counts. I don't really care if it does or not). It's funny. well, some bits are funny.

 

[RodeyCap]

1950's Germany: an ex-Gestapo operative moves into a house with a Rabbi as a landlord. Hilarity ensues.

 

[Onyx Oblivion]

I thought you meant a bland sitcom. Not a sitcom about living in a flat. Well, "Two and a Half Men" centers around the two brothers and a kid living together in the richer brother's house after the other becomes broke through divorce. Does that count?