Planet of the Apes (1974) Television series about a group of astronauts who travel in time and become marooned on a planet. Unbeknownst to them, they are actually on future Earth. The astronauts encounter an advanced civilization run by apes, but supported by enslaved human workers.
Hurled 1,100 years into the future, astronauts Alan Virdon and Pete Burke find themselves in a society where humans are subservient to super-intelligent apes. Their situation is made more bearable by Galen, a sympathetic chimp who comes to question whether humans are, indeed, an inferior species.