Fans of "The X-Files": We'd like to present the cream of the crop (circle). Fox's alien-obsessed sci-fi series ran for nine seasons in the 1990s and early 2000s, then returned for two revival seasons ...

As of Jan. 1, Pluto TV now has one of the biggest sci-fi series of the 1990s — or, ever, really — streaming for free in its library. Despite its acclaim and it being a cultural landmark, The X-Files, ...