Only one I can think of is Series of Unfortunate Events: Grim Grotto
Preferably a series and workplace situational
U-571, SeaQuest: DSV, K-19: The Widowmaker, Red October, Das Boot…but the best was Down Periscope with Kelsey Grammar.
Also Crimson Tide and The Abyss
Down periscope was apparently eerily accurate according to a friend.
The only one I can think of is Down Periscope.
It’s a comedy.
Literally the most realistic portrayal of life aboard an American boat.
Not strictly about life on a submarine, but Vigil by the BBC was a great fictional mini series based on the British nuclear submarines
Came here to say that. That show was so damn good!
Below is a horror movie set on a submarine. There’s quite a lot of ordinary daily activity before things turn sour.
Seaquest
Keep in mind you made no requirement about the quality of the show.
"Set in “the near future” (the year 2018 in the first season), seaQuest DSV originally mixed high drama with realistic scientific fiction.[4] The first two seasons star Roy Scheider as Captain Nathan Bridger, designer and commander of the eponymous naval submarine seaQuest DSV 4600, the ship prefix standing for “deep-submergence vehicle”. "
This is the best primer over ever found on the topic
https://youtube.com/playlist?list=PLjHf9jaFs8XWoGULb2HQRvhzBclS1yimW&si=GLVXGfURN4xxPusO
I love primer(s)!
Sphere by Michael Crichton
You could then also say that The Abyss is also a submarine movie. While technically you could say that, I don’t think that’s what they were asking for.