I have a "set system" when it comes to my TV viewing, in that I have three sets of TV shows I would rotate after finishing a single season of each set's TV shows. Each set would also have a visual novel reading attached to the schedule because I enjoy visual novels. The three sets (and the latest season I've finished) are as followed:
Set 1, the current set I'm watching (the animation block):
BoJack Horseman (season 3)
Futurama (season 8)
Beavis and Butthead (season 6)
Daria (season 5)
Archer (season 5)
King of the Hill (season 5)
X-Men: The Animated Series (season 2) (trying to catch-up for X-Men '97)
Attack on Titan (season 3)
Chaos;Child
Set 2 (the sci-fi/supernatural/mature TV block)
Chucky (season 1)
Star Trek: TOS (season 2)
The Twilight Zone (1959) (season 2) (rewatch)
South Park (season 7)
Love, Death & Robots (season 1)
Disney's Gargoyles (season 1)
Castlevania (season 1)
Superman: The Animated Series (season 1)
Rick & Morty (season 7)
The Venture Bros. (season 2)
Chainsaw Man (season 1)
Set 3 (the prestige TV/campy/comedy block)
Hercules: The Legendary Journeys (season 6) FINISHED SERIES
Xena: Warrior Princess (season 5)
Hannibal (season 1)
Seinfeld (season 6)
Community (season 1)
The Sopranos (season 5)
The Wire (season 5) FINISHED SERIES
Mad Men (season 5)
Breaking Bad (season 5) FINISHED SERIES
This system all began when I wanted to catch up on three '90s TV shows that I missed out on because I was too young at the time: The Simpsons (set 1), The X-Files (set 2), and Buffy: The Vampire Slayer (set 3). Dropped Simpsons after season 11 and replaced it with Futurama, dropped X-Files after season 10 and replaced it with Supernatural (which I recently dropped after season 7), finished Buffy and Angel a few years ago and replaced them with Hercules and Xena.
The rest, as they say, is history.
I feel like this was a good system to help me catch up on renown TV shows that I haven't watched, and I'm planning to continue using it and expand upon it. Someday, once I run out, I'll probably return to my first love: movies.