It's technical stuff that even I find confusing at times. And I was using broadcast gear in college. Same frame rates though.

Anything not shot on film from the earliest days of broadcast tv the last day of analog broadcasting were 30 fps. Those Twilight Zone episodes in question aired for years in syndication as kinescopes. (Video recorded on film) When they actually found the video masters I'm not certain. I saw the Art Carney Christmas episode over the holidays on SciFi, and it was still the kinescope one.