>>16740261If you're interested in Star Trek then personally you MUST watch TOS. Kirk is just the man.
Also you'll understand lots of references and sequels to stories that continue in TNG and further series.
Plus you'll watch to watch the TOS movies which are great.
It's from the 60s so yeah obviously the effects are cheesy but you'll grow to love the characters and stories, and even just how well everyone talked back then.
Also if you watch on any streaming platforms, it will be the remastered version. They did a really good job with and didn't take away from any of the cheesy effects imo.