My Favorite Martian was certainly before *my* time (I was too young to go see Fast Times when it came out), but theu used to show reruns on TBS and I watched the show a few times.
And I see that DJ already filled you in re: Ray Walston’s passing.
Of course, the best part of “Fast Times” is the swimming pool scene with Phoebe Cates (or rather Judge Reinhold’s “fantasy”)... had to see that on the movie channels. They don’t make ‘em like that anymore.