With the various incarnations of Star Trek, of course, as Majel Roddenberry was the de facto show-runner, but also with The X-Files and V1983, due to the alien conspiracy arcs and gray morality of the show.
Particularly when it came to V1983, the show shares a lot of its premise (though not its actual plot) - Aliens arriving to Earth using the guise of being friendly to hide a much more sinister purpose. The aliens having a human-like appearance that conceals their truly alien nature, the aliens and their supporters using a friendly English word to refer to them and make them seem more benign (The Taelon's "Companions" vs V's "Visitors"). A resistance movement forming while most of humanity is ambivalent to supportive of the aliens.
Retroactive Recognition: Anthony Lemke, who plays the Atavus named Gren who seduces J Street in the Season 5 episode "Entombed", is best known to sci-fi/fantasy fans as Three a.k.a. Marcus Boone in Dark Matter (2015).
Special Effects Failure / Visual Effects of Awesome: Some of the effects have aged very well, others not so much. Amusingly, the mothership in Season 1 was awful even for the time, while its updated look from Season 2 onwards is probably the show's best effect and holds up well today.
Strawman Has a Point: Renee becomes extremely distrustful of alien life as a concept. Ra'jel calls her out on this and Renee answers, correctly, that every alien government or force yet encountered by humans has had malevolent intent, barring a few dissenting individuals. Ra'jel still convinces her that she shouldn't shy away from further first contact with other life.
