I know what you mean, the people that bag it would sit and listen to commercial breakfast radio pissing themselves laughing. Tossers (my best mate I'm talking about btw)
I tried to get my house mates into it when I lived in the UK.
Each week they'd sit there talking through the whole thing and whenever I laughed at something they'd just say "that's not funny".
You're right. In isolation it's not.
But in the context of all the things you missed earlier because you wouldn't shut the f**k up, it's f**king hilarious!
Idiots.
I hate sitcoms where every single line tries to be funny.
For me, the best part of a joke is setting up for the delivery of the punchline.