What's this, "Essential Series: born after 2000" edition?
X-Files
Star Trek TNG
Babylon 5
My favorites series for all years!
+ Supernatural
+ The Flash
+ The X Files
+ MacGuyver
+ Airwolf
+ The Cosby Show
+ Bones
+ CSI: Crime Scene Investigator
+ Lost
+ Power Rangers
+Supernatural
Added all to the OP