I was watching a replay of the new Chris Rock special (Selective Outrage). The original had been a live stream, and the UX was slightly different from a typical recorded program. When I tried to rewind, the scrub bar would show up and count the time code backwards normally, as if I was rewinding. But when I pressed play, nothing happened. It would just stay there. There was no way to make it respond. If I pressed the back button, it would just start playing again where it had originally been before the rewind attempt.
Seems like an annoying bug to not be able to rewind or fast forward a special like this. But even if they're going to not allow those functions, they should say so when you attempt it, and not show the counter rewinding. Hope this isn't the case for all formerly live events.