You could describe this as 'another' sketch show. And you would be quite right to, but this has one party piece: it was the first 'big' British sketch show, which has since been followed by a load of crap.
That's the thing with Little Britain. When it first came out, it was shoved in our faces and the best thing since sliced bread. But personally, I didn't think it lived up to all the hype.
Now things have calmed down a bit, and the episodes are a lot more enjoyable, because you don't see the show regularly enough.
If you watch it all the time you will quickly get bored of its repetitivity and will be able to guess what's coming up. But watch it once in a while, and you will begin to appreciate those tongue-in-cheek, and scarily accurate, remarks.