The Most Up-and-Down TV Series
No steady line here. These series swung up and down from season to season, mixing standout years with rough patches. Neither a triumph nor a collapse, just a wild ride.
Ranked by how wildly the seasons swung · 14 series
Grey's Anatomy
376K 467 2005–present
Medical · Soap & telenovela
10 swings
Pokémon
57K 1235 1997–2023
Long-runner · Anime
9 swings
Bleach
94K 369 2004–2012
Anime · Sprawling saga
8 swings
Doctor Who
41K 695 1963–1989
Time travel · Long-runner
8 swings
The Angry Video Game Nerd
16K 270 2004–present
Nostalgic · Episodic · Lo-fi charm
7 swings
South Park
446K 339 1997–present
Adult animation · Satirical
7 swings
Ninjago
14K 212 2011–2022
Kids & family · Long-runner
5 swings
Only Fools and Horses
66K 64 1981–2003
British TV · Working class
5 swings
SpongeBob SquarePants
127K 357 1999–present
Slapstick · Whimsical · Absurdist
4 swings
Dexter
947K 96 2006–2013
Antihero lead · Dark tone
4 swings
Red Dwarf
39K 74 1988–present
British TV · Dry humor
4 swings
Ben 10: Omniverse
11K 80 2012–2014
Kids & family · Family-safe
4 swings
The Loud House
11K 250 2015–present
Kids & family · Family-safe
3 swings
The 100
306K 100 2014–2020
Post-apocalyptic · Survival
3 swings