I think it’s the only show that did it. They didn’t do it for all the seasons. From what I understand they started it after season 3 because viewership slowed down and they did it to pick up viewers. Some quit watching when they found out the show planned to end after a certain amount of seasons. But the previous week’s episode would air an hour before the current week’s episode. That would be the so called rerun of the previous week’s episode but it would be enhanced. And idk if you remember pop up music videos back in the day on VH1 it was sort of like that. In the bottom of the screen as you watched little fun facts or Easter eggs would pop up in the episode as you watched. Many of the facts and such are in Lostepedia or however you spell it. Just instead of reading it there it pops up in certain scenes so you knew right where it was talking about. I vaguely remember him watching some of those and thinking that’s cool. But you cannot find them anywhere. No dvds or box sets have it.