Video hosting sites:
  youtube
  megavideo
  tudou
  google
  56
  guba
  metacafe

Indexing sites:
  Surf The Channel
  Southpark Studios
  Legal Movies

Some of my favorite tv shows online:
  Californification
  CSI
  CSI:Miami
  Dead Like Me
  Dexter
  Dilbert
  Family Guy
  Ice Road Truckers
  Law & Order:Criminal Intent
  Lucky Louie
  Malcom In The Middle
  Married With Children
  Mr. Bean
  Mythbusters
  Penn & Teller:Bullshit
  Red Dwarf
  Rescue Me
  Scrubs
  Stargate SG1
  Star Trek:
     TOS
     DS9
     Enterprise
     TNG
     Voyager
  Top Gear
  Trailer Park Boys
  The X Files

If you are looking for movies go here.

Various documentaries.