- The Wire
- Firefly (and Serenity)
- South Park
- Buffy (crosses over with Angel from Season 4)
- Sherlock
(shows I recommend without hesitation)
- Westworld
- The Sopranos
- Band of Brothers
- Planet Earth
- Stargate SG-1 (crosses over with Stargate Atlantis later)
- Veronica Mars
- Mad Men
- Game of Thrones
- Battlestar Galactica (and Caprica)
- Hannibal
- House of Cards
- Rick and Morty
- Black Mirror
- BoJack Horseman
- The X-Files
- Rome
- Californication
- Broadchurch
- Twin Peaks
- Archer
- Brooklyn Nine-Nine
- Terminator: The Sarah Connor Chronicles
- True Detective
- House MD
- Jericho
- The Americans
- Homeland
- Batman: The Animated Series
- Star Trek
- The Expanse
- Legion
- Arrested Development
- Cosmos: A Personal Voyage
- Planet Earth
- Community
- Daredevil
- Vikings
- The Office (UK)
- Seinfeld
- Stranger Things
- Dexter (until Season 4)
- The Simpsons (until around Season 6-9)
- Freaks and Geeks
(I recommend at least trying these, but you might not like them)
- Family Guy / American Dad
- How I Met Your Mother
- Lost
- Peep Show / That Mitchell And Webb Look
- Penn and Teller: Bullshit!
- Portlandia
- Silicon Valley
- The Simpsons (after Season 9)
- Futurama
- Two and a Half Men
- Orange Is The New Black
- Awake
- Altered Carbon
- Suits
- Doctor Who (the new 2005 series)
- Breaking Bad (and Better Call Saul)
- Downton Abbey
- Tim and Eric Awesome Show, Great Job!
- Gotham
- QI
- Dirk Gently's Holistic Detective Agency
- Heroes (Seasons 1-2, the rest is skippable)
- Clone High
- Whose Line Is It Anyway?
- Sealab 2021
- Animaniacs (and Pinky and the Brain)
I recommend skipping these: Castle, Bones, Revolution, Falling Skies, The Big Bang Theory, Terra Nova, Prison Break, Glee, Elementary, Star Wars: The Clone Wars, Stargate: Universe, The Cleveland Show, Roswell, Chuck, The Cape, The Winner, Anger Management, The Walking Dead, Flashforward, Lucifer