Well, we are watching thru Voyage to the Bottom of the Sea episodes here...and, if you haven't seen it... it's something. Something kinda like Trek was - it's own look, all color-co-ordinated, very professional Irwin Allen prod. - great continuity of shots, soundtrack.. and a bunch of things to look for.
In practically every episode - the Seaview is gonna crash on the bottom, or be buffeted, and we get 'spaceship acting' from the crew, flinging themselves back and forth, as fireworks explode from the many electrical panels all over the ship. Often , electrical fires start, and out come the fire extinguishers, sometimes 2-3 times per episode. About every 5th episode we get a huge sea creature, like an amoeba or seaweed monster, whereas the rubber-suit monsters are gonna show up every 2nd or 3rd episode - sometimes aliens plotting total Earth takeover.. .
but then, at the last minute, the crew figure it all out and wrap it up, no matter how dire, then the Admiral says something like 'maybe we aren't meant to know..' or somesuch, and the theme music plays.
It's really camp, but sneakier about it than, say, Batman. There's always shelves, with gear on them, that are gonna go over during a fight, even tho' on a sub you wouldn't... ... well nevermind, just give it a try. After a few episodes you'll start to notice things. The one we watched today featured a giant egg that they dredged up - we were quite sure it was gonna be a dinosaur but no - it was a red-suited devilish amphibian alien, with two prongs on his head, rubber suit, from Skorpius... and the Skorpius guys had telepathy, teleportation, and other powers, and they killed a couple crew members, which happens, but they and their island of millions of eggs were destroyed, and gosh you just never know what is gonna happen next, except that the crew are gonna fling themselves about and whip out the fire extinguishers.. * there's no women on the ship... although we had a Mermaid recently, she got no lines... so... I can't wait for tomorrow's episode, cos I missed it back in the 60s, so yeah, kinda fun. )