What episodes of Star Trek TOS were Dilithium Crystals shown on screen. (Not just mentioned.) Thanks, Stan
I thought about it some more, and there were three episodes. I checked my DVDs, and hunted up all the scenes I could find.
- Mudd's Women Season 1
Spock shows one of the crystals that was damaged in rescuing Mudd.
- The Alternative Factor Season1
Lazarus and crazy Lazarus both steal crystals from the Enterprise. You see the crystals several times, and also the dilithium chamber.
Elaan of Troyius Season 3
This is the one everybody remembers, probably because Elaan was wearing them as a necklace - and she spent most of the episode wearing costumes that would make a stripper blush. I can't believe it took me nearly 40 years to recognize the ham fisted play on words "Helen of Troy" and "Elaan of Troyius"
Spock and Scotty installing the "crude crystals" in the dilithium chamber. If you look, you'll see the burned out one lying there. It looks like the ones from "The Alternative Factor" but it is burned looking.
It seems the props folks didn't have a real clear idea of what the dilithium crystals should be and what they should look like.
Besides the three episodes that were previously mentioned, I believe there is a brief scene in The Paradise Syndrome. I've only seen it once, as it seems to have been deleted from most syndication packages, but it's when Enterprise is closing in on the asteroid. Scotty does a quick visual inspection of the crystals where he reports to Spock, "Dilithium crystal circuit's failing, sir."
Elaan of Troyus is the only one I know.