If you're looking for some science fiction humor, I'd suggest watching episodes of Mystery Science Theater 3000, a show that ran from 1988 to 1999.
One of my favorite episodes is "Space Mutiny" (No. 820), which made fun of a movie by the same name that came out in 1988. If you haven't seen it, you can watch the episode below. It was shown on the Sci-Fi Channel (now SyFy) and contains language, sexuality and crude humor.
Sit back and don't laugh too hard.