Didn't find them that funny myself - though I suppose it's American humour, though two American stand-ups I do love as Bill Hicks and Henry Rollins, but then again they're not exactly tame. Personally I'm patriotic when it comes to stand-up, I've never seen anybody funnier than some of our very own British comedians like Eddie Izzard, Bill Bailey, Dylan Moran, Jack Dee etc. Though one American comedian I do love is Rich Hall, not seen his stand-up and is a good contributor to the UK's comedy quiz show 'QI', and I caught his 'Fishing Show' on Dave last night, which I thought was quite funny.
But people talking about The Office...I don't find it funny - either versions.
But what comedy shows are great are the Peep Show (seasons 1 and 2, I've not found more recent ones that funny) and Black Books - the latter is great for the 'drunken Irish' stereotype, it got quite insane at times. But then humour is really a subjective thing of course, but if any yanks with a less 'tame' sense of humour are reading, there might be some recommendations there.
You sir have the moral ambivalence of a mutated shrimp!