Radio 4 comedy is generally far superior to anything on TV. Loads of good things on and even more in the way of the old stuff on Radio 4 Extra.
Cabin Pressure is probably my favourite sit-com of all time (TV included). Basically anything John Finnemore touches is comedy genius. It does help if you listen to CP from episode 1 onwards, as a lot of the jokes will make more sense.
Other great sit-coms include Clare in the Community, Ed Reardon, Old Harry’s Game and Hut 33.
News Quiz is a far superior version of Have I Got News For You. Pal of mine was chatting to Fred McAuley once who told him that before going on HIGNFY the producer told him “Remember this isn’t the News Quiz, keep it dumb and don’t use any long words”.
I’m Sorry I Haven’t a Clue is very silly British humour at it’s very silly best.
And loads of other stuff too. For example a few weeks ago I came across a lovely, gentle little sit-com called The Cold Swedish Winter.