Just interested if there’s an episode of a particular series you find yourself going back to? Not necessarily “the best” or your favorite, just one you gravitate toward for a comfort re-watch? Here’s the episodes from each series I find myself re-watching a lot:
TOS: Mirror, Mirror (instant classic, love the episode)
TNG: The Offspring (favorite Data episode, gives me a lump in the throat)
DS9: The Visitor (similar feeling to The Offspring)
VOY: Blink of an Eye (brilliant episode, even if it apparently rips off a novel but it’s cool to see the concept on TV)
ENT: Similitude (love the drama, love the theme and emotions)
DIS: Need to rewatch the first four seasons to find an episode that I’d want to rewatch
PIC: Vox (Okay, for the ENT-D reveal…)
SNW: Momento Mori (the first season is way better than the second season, and this episode is really cool IMO)
Haven’t seen enough of TAS, Prodigy, and Lower Decks to select any.
That’s a tough one! Off the top of my head, I’d say the following:
TOS: The Doomsday Machine
TNG: The Offspring
DS9: Duet - Probably my favorite episode of any ST series.
LD: First First Contact
SNW: Memento Mori - I’ve only seen S1, hoping to watch S2 soon.
I’ve not watched much of TAS, VOY, ENT and PRO, so I didn’t mark them down.
DIS: ??? - I’ve seen up to S3 so far, but no particular episode that really sticks out unfortunately. Probably something in S2.
PIC: ??? - I’ve only watched S1, unfortunately no favorites.
I’ve got a lot of favorites, but these are the ones I probably most enjoy. It can change depending on the day though! There’s been a lot of really good episodes through the years.