Re: Crossovers that never happened but you wish would
"Lost in Space", "Land of the Giants" and "Voyage to the Bottom of the Sea". And, since they were set in different time-periods, perhaps it would all be facilitated by use of "The Time Tunnel".
OHHhhhhh . . . the pain . . . the pain . . .
My favorite TV show is "Cool Hand Luke Skywalker--Texas Ranger". The best episode is the one where he fights Samantha's wacky Sith Lord Uncle, Darth Arthur . . ."