Sean Carroll - The Paradoxes of Time Travel: https://vimeo.com/11917849
Stable Time Loop on TV Tropes: https://tvtropes.org/pmwiki/pmwiki.php/Main/StableTimeLoop
If this list's topic is featured only in certain parts of a show/movie on this list, or there are other peculiarities, I'll do my best to leave a note here.
Misfits: Seasons 2, 3