Well it's subtle, nice gentle humour, it's not for everyone, But what is? Oh yeah, that Trash they put on BBC1 sometimes, thats been through the cheese making machine so many times, the Yanks will think it's a tasty meal(They put cheese on everything)
It's nice to recognise some of their character traits and sometimes you can identify with them. Most of us know someone like them in the show, who we take for granted in real life and it reminds us of this.
There's some good jokes in there too, sorry if they are too subtle, but to us who get them and enjoy them, think their perfectly done.