Which are best and must watch sci-fi movies and TV series?

Here are a few of my favorites (added some fantasy in here as well)

TV

• The Expanse
• Humans
• Sherlock ( not sci-fi but REALLY good)
• Eureka
• Battlestar Galactica (2004 version)
• Star Trek
• Star Trek: Enterprise
• Farscape
• Orphan Black
• Firefly
• The Lost Room ( with Peter Krause - it is an old miniseries that had an excellent story line and I wish they had continued it)
• The Dresden Files
• Quantum Leap
• Andromeda (my favorite Kevin Sorbo series)
• Space 1999
• Stargate SG1
• Stargate Atlantis
• Stargate Universe
• The Event
• Heroes (NBC series)
• Timeless
• Time after Time

Movies - these are the few that I own because I will watch them again:

• Serenity
• Star Wars Series
• Most of the Marvel series (Thor, Ironman, Avengers, Captain America, Amazing Spider-Man series, Guardians of the Galaxy). Not particular fan of th Hulk and the older Spider-Man series through I have them
• Man of Steel
• Superman (first one with Chris Reeves - the rest were a bit cheesy)
• Superman vs. Batman : Dawn of Justice
• Dark Knight Trilogy (Christian Bale)
• Hellboy
• Pirates of the Caribbean (first three)
• Mystery Men (Love Ben Stiller in this)
• Lord of the Rings
• Blade Runner
• 2001 - A Space Odyssey
• Star Trek II and III only
• Star Trek First Contact ( one of the best Star Trek movies made)
• Star Trek series (with Chris Pine)
• The Hobbit
• The Matrix Trilogy
• Transformers (First movie only)
• Interstellar
• Contact
• Willow
• A Boy and his Dog
• Thirteen Warriors
• Jurassic Park I and II
• The Fifth Element
• Stargate
• The Dark Crystal
• The Thing ( with Kurt Russel)
• Alien
• Aliens
• Time Bandits (I'm a big Terry Gilliam fan)
• Conan the Barbarian
• Silent Running
• Highlander (first introduced to Clancy Brown - always plays an excellent bad guy or tough guy)
• Terminator I and II

There are others I can't think of right now that should be here but this is a good start.