How about The Newhart Show, Dick van Dyke, even Seinfeld (even if the intelligence goes nowhere and proves nothing).
The Simpsons sometimes hits a chord but mostly is a slight angle on the usual subjects.
I find them almost too outrageous to watch but I've got to admit that 'Family Guy' and AMerican Dad' actually take the ideas further than the Simpsons ever have.
Personally, I miss "Pinky & the Brain". Good thing I have the whole series on VCD :-)
Simpsons writers have cited the Dick Van Dyke show as one of their models actually. However at its best TS has a level of sophistication and literacy that's unprecedented for Broadcast TV.