Doctor Who

People replying seem to think that this is referencing someone who recorded the episodes on their VCR (in the 60's?) and have a stack of tapes in their closet.

I think most of the recovered episodes have been found in foreign broadcaster archives in the form of 16 mm film. I would guess that is what they are talking about. Either some dusty film archive in some country somewhere, or some personal collection where someone who lifted the film from their employer has it stashed away.

However, I also think it's probably getting more and more unlikely that anything more will be found.

From https://wikipedia.org/wiki/Doctor_Who_missing_episodes:

"Most Doctor Who episodes were made on two-inch videotape for initial broadcast and then telerecorded onto 16 mm film by BBC Enterprises for further commercial use."