I don't get these threads.
Of course it's not shit - it may not be your favourite, and if you're trying to impress girls with your breadth of cartoon comedial encyclopaedic knowledge thus rendering any appreciation of such a populist entity against your quasi-religion, but how many other shows do a Star Wars spoof that also references Airplane?
What about the episode with Michael McDonald?
For the record, I think it is more similar to the Simpsons than people would care to admit - FG fans are pretty much always ex-Simpsons fans that have grown out of the eventual shitness of Simpsons (which isn't even shit per se, you just have too much of it IMO). That's not to say their identical, but you can compare the similarities between the two a lot closer than you can, say, SP or Futurama. So it's like saying Coupled is similar to Friends, well, not identical, but more similar than the Office.