Re: STAR TREK the enemy of LOST IN SPACE?
Wow, there was a LiS episode called The Space Croppers? That was also used as the title of a Galactica 1980 episode. The writers of the latter must have been telegraphing "This series has officially become a lame, silly kids' show."
Also a Space:1999 episode titled "The Immunity Syndrome" and a dozen or so shows using "The Enemy Within." Let's not forget "Mirror, Mirror."
"Tranya is people!"