Parks and Recreation would be an obvious one here. It seems fairly common advice to skip S1 altogether.

Literally every star trek.

So, it was clearly a phenomenon even in its early form, and its lumbering husk maybe alters our view of early seasons, but the first season or two of the Simpsons is really crude (not in the clutching pearls way, but in the quality and production values way). It really took until about Season 3 to zero in on the art, the voicework, the tone, and the writing. S1 and S2 are maybe more Groening-like but I’m not sure that was to the show’s overall benefit, though classic scenes like the therapy electroshocks are indeed hilarious.