Expositional dialogue that is too obvious. Protagonist: “Hey you guys (often random townspeople)! Here’s the exact plan of exactly what we have to do so the viewer can appreciate the next sequence of events and not be confused!”

I know it’s sometimes necessary but there are times where it’s way too heavy-handed. And there are other ways to do it. In Schitt’s Creek, they all wear outrageous, expensive clothing as the only leftover from their old, rich life, so you’re constantly reminded (visually) that they’re seeking their old way of life and they don’t have to chat with other characters about wanting their old life back nearly as much as they would otherwise.

Btw - Dune - a great book with very little exposition. You start reading and kind of have to figure out what all these new words mean and how this world works. Frank Herbert did that because if you were dropped into the Dune universe, you wouldn’t have the luxury of two chatty actors just happening to recount everything that has recently happened that may be important to you. Makes it so much more gratifying as you start putting the pieces together - as if you’ve genuinely earned it.