Best Sci-Fi TV Series of the 2000s
305 Sci-Fi series that started in the 2000s, ranked by popularity
Firefly
303K 14 2002–2003
Adventure · Sci-Fi
Fringe
271K 100 2008–2013
Drama · Mystery · Sci-Fi
Doctor Who
263K 175 2005–2022
Adventure · Drama · Sci-Fi
Flashforward
63K 23 2009–2010
Drama · Mystery · Sci-Fi
V
61K 23 2009–2011
Drama · Sci-Fi · Thriller
Stargate Universe
56K 40 2009–2011
Drama · Sci-Fi
Dollhouse
54K 26 2009–2010
Drama · Mystery · Sci-Fi
The 4400
49K 45 2004–2007
Drama · Mystery · Sci-Fi
Better Off Ted
28K 26 2009–2010
Comedy · Sci-Fi
Caprica
28K 18 2009–2010
Action · Drama · Sci-Fi
Harvey Birdman, Attorney at Law
13K 39 2000–2007
Animation · Comedy · Sci-Fi
The Oblongs
10K 13 2001–2002
Animation · Comedy · Sci-Fi
Defying Gravity
10K 13 2009–2009
Drama · Sci-Fi
Journeyman
10K 13 2007–2007
Fantasy · Romance · Sci-Fi
Clone High
10K 13 2002–2003
Animation · Comedy · Sci-Fi
Survivors
9K 12 2008–2010
Drama · Sci-Fi
Kings
9K 13 2009–2009
Drama · Sci-Fi
Day Break
9K 13 2006–2007
Action · Drama · Sci-Fi
Sealab 2021
9K 53 2000–2005
Animation · Comedy · Sci-Fi
John Doe
9K 22 2002–2003
Drama · Mystery · Sci-Fi
Frisky Dingo
8K 25 2006–2008
Animation · Comedy · Sci-Fi
New Amsterdam
8K 8 2008–2008
Crime · Drama · Sci-Fi
Threshold
6K 13 2005–2006
Action · Drama · Sci-Fi
The Tick
6K 9 2001–2002
Action · Comedy · Sci-Fi