As I mentioned in that other thread, most of Star Trek is just variations on the monster of the week theme. Sometimes it's aliens, freaks, evil admirals, spatial anomalies, time vortices, space hippies, mutants, or whatever. Many other shows use this same format, including most cop shows, Buffy, Supernatural, Doctor Who, X-Files, Charmed, Supergirl, Flash, Smallville, and many many others.
This is more a structural-level similarity rather than specific plot details similarity, so it might be more abstract than you're asking for.
This is more a structural-level similarity rather than specific plot details similarity, so it might be more abstract than you're asking for.