After I check the usual torrent sites, if I can’t find it on Usenet then I try finding random sketchy streaming sites (just by duckduckgoing title + year + stream) because usually you can youtube-dl them with a little fiddling, then my last resort is a DHT indexer like btdig. That’s more risk with viruses but if you’re paying attention it’s not that hard to avoid, but DHT indexes have lots of ancient stuff so be prepared to wait for seeds if you find it.

Sometimes I also find what I’m looking for on like page 7 of duckduckgo results at archive.org

Edit: also check soulseek - it’s primarily for music but you can share any file. I share my entire movies collection and get a constant stream of people downloading from me daily so it seems people search for and seem to also share TV and movies so it’s worth a check.

As long as your thermistor or heater block doesn’t fall out you should be fine. But if you want to be safe, just set it to 200 and then turn it off before you unscrew it so that it won’t thermal runaway if it comes apart while working on it.