No one's mentioned Nichijou? For shame. Barbarians. XD
Although in all fairness Nichijou is really, really Japanese. So for every joke you do get there will be 2 or 3 that completely go under the radar by a long shot.
That's because I already listed it under shows I very much do not like, and for the reasons you mentioned, btw. =P
Oh, and I started SKET Dance already. Liking it a lot, so thanks Kevadu. Now I just gotta figure out another show to go with it (I like watching lighter shows in pairs). I already had to set Slayers aside while I wait for the box set I ordered to arrive, and I gave up watching it on Hulu (I really do hate that site now. Last time I was there I had to sit through 3+ minute commercial breaks. May as well have watched on TV).