My son got really into Land of the Lost (1974) despite it's atrocious greenscreen effects. At least the claymation is actually decent.
Funnily enough the series shapes up to be much more well-written than I remember from my childhood. I think the German dub I watched it with might have had something to do with that.
I wonder how much it shaped #ttrpg as a hobby, because it came out at exactly the right time, and it has all the proper tropes of a weird scifi-fantasy #dnd game.