The Venture Brothers: Season 1 is like a prologue. Worse animation and just not on par with the rest of the series. Which is important when the series is pretty zany. Mediocre zany is a hard-sell. Well worth it for one if the best shows ever made. Start at Season 2, and wrap around to season one when you are done.

Seinfeld. Skip the short season 1. Know that season 2 is a little rocky with some hidden gems.

Agents of Shield: It gets incredible. Season One is the low point. The novelty of hitting a big reveal timed with the Thor movie release has no payoff years later and just makes for a slow first season. Season One is the weakest; Season 2 is good, but second weakest. Some seasons are incredible.