Star Trek - City on the Edge of Forever
Finally, finally, Star Trek lived up to its promise. There is a surprisingly good Wikipedia piece covering the production of this show. Harlan Ellison lived up to his reputation, brilliant and difficult.
The X-Files - Jose Chung’s From Outer Space
All the X-Files episodes written by Darin Morgan were great, but I think I preferred his "Clyde Bruckman's Final Repose." "Humbug" was fun, too.
The Twilight Zone - It’s a Good Life
I had forgotten about that one. The Twilight Zone was usually fake-scary, but that show was genuinely scary.
....but I think I preferred his “Clyde Bruckman’s Final Repose.”