The original TV series (as they admitted themselves) is massively hit and miss. You’d have one or two classic sketches, some fairly good stuff and some real duds all mixed together, although I think that’s part of the appeal in a way.
I can totally see why a lot of people would struggle with it now (the portrayal of women especially hasn’t aged well, although it’s aged better than a lot of things of that vintage (and later in fact) in some respects. There’s one racial punchline in ‘The Good Life’ that made me suck my teeth on re-watching those).
That said, I do think they massively changed the landscape of comedy and I love both a lot of the stuff they did and that they inspired.