Stargate.

1. Stargate (the movie, 1994) - https://m.imdb.com/title/tt0111282/
2. Stargate-SG1 - https://m.imdb.com/title/tt0118480/ - 10 seasons of amazing television + several movies after the later seasons
3. Stargate: Atlantis - another 5 very good seasons in a new show starting with season 08 of SG-1 (parallel and loosely connected series) - https://m.imdb.com/title/tt0374455/
4. Stargate Universe - 2 more good seasons in a 3rd show - https://m.imdb.com/title/tt1286039/
5. Stargate Origins - https://m.imdb.com/title/tt7161862/ - cannot recommend, as rewrites the history of the other shows.