Debuts (including Scheduled)
| Date | Debut |
|---|---|
| January 5 | Transformers: Animated on Cartoon Network |
| January 9 | Ghost Hunters International on Sci Fi Channel |
| January 13 | Terminator: The Sarah Connor Chronicles on Fox |
| January 20 | Breaking Bad on AMC |
| January 22 | The Guard on Global |
| January 23 | The Moment of Truth on Fox |
| January 28 | In Treatment on HBO |
| January 31 | Eli Stone on ABC |
| February 4 | The Mr. Men Show on Cartoon Network |
| February 4 | Welcome to The Captain on CBS |
| February 7 | Ashes to Ashes on BBC One |
| February 7 | Lipstick Jungle on NBC |
| February 7 | Ni Hao, Kai-Lan on Nickelodeon |
| February 7 | Survivor: Micronesia on CBS |
| February 18 | Power Rangers: Jungle Fury on Toon Disney/Jetix |
| March 2 | Unhitched on Fox |
| March 4 | New Amsterdam on Fox |
| March 8 | The Spectacular Spider-Man on The CW |
| March 10 | Canterbury's Law on Fox |
| March 14 | The Return of Jezebel James on Fox |
| March 16 | John Adams on HBO |
| March 18 | Miss/Guided on ABC |
| March 30 | Tracey Ullman's State of the Union on Showtime |
| April 12 | Groomer Has It on Animal Planet |
| April 18 | Ben 10: Alien Force on Cartoon Network |
| April 22 | The Big Green Help on Nickelodeon |
| April 22 | A Shot at Love 2 with Tila Tequila on MTV |
| April 26 | The Mighty B! on Nickelodeon |
| April 30 | Farmer Wants a Wife on The CW |
| May 24 | Denise Richards: It's Complicated on E! |
| May 24 | Living Lohan on E! |
| June 1 | Million Dollar Password on CBS |
| June 5 | Big Brother 9 on channel 4. |
| June 5 | The Marvelous Misadventures of Flapjack on Cartoon Network |
| June 5 | Swingtown on CBS |
| June 24 | I Survived a Japanese Game Show on ABC |
| June 24 | Wipeout on ABC |
| July 1 | The Secret Life of the American Teenager on ABC Family |
| July 11 | Queen Bees on The N |
| July 11 | Flashpoint on CBS |
| July 13 | Generation Kill on HBO |
| July 14 | The Wendy Williams Show on Syndication |
| July 15 | Must Love Kids on TLC |
| July 29 | Jurassic Fight Club on History Channel |
| August 3 | Pam: Girl on the Loose! on E! |
| August 15 | Outsider's Inn on CMT |
| August 21 | The Principal's Office on truTV |
| September 1 | Raising the Bar on TNT |
| September 2 | 90210 on The CW |
| September 3 | Sons of Anarchy on FX |
| September 7 | True Blood on HBO |
| September 8 | The Rachel Maddow Show on MSNBC |
| September 8 | Family Court With Judge Penny in syndication (US and Canada) |
| September 8 | The Doctors in syndication (US and Canada) |
| September 9 | Privileged on The CW |
| September 9 | Fringe on Fox |
| September 10 | Do Not Disturb on Fox |
| September 13 | Yu-Gi-Oh! 5D's on The CW4Kids |
| September 15 | My Family's Got GUTS on Nickelodeon |
| September 18 | Survivor: Gabon on CBS |
| September 22 | Worst Week on CBS |
| September 23 | Opportunity Knocks on ABC |
| September 23 | The Mentalist on CBS |
| September 24 | Gary Unmarried on CBS |
| September 24 | Knight Rider on NBC |
| September 26 | The Suite Life on Deck on Disney Channel |
| September 28 | Little Britain USA on HBO |
| September 30 | Paris Hilton's My New BFF on MTV |
| October 3 | The Ex-List on CBS |
| October 3 | The Secret Saturdays on Cartoon Network. |
| October 3 | Star Wars: The Clone Wars on Cartoon Network |
| October 3 | Sanctuary on SCI FI |
| October 4 | Making Fiends on Nicktoons Network |
| October 5 | Easy Money on The CW |
| October 5 | In Harm's Way on The CW |
| October 5 | Valentine on The CW |
| October 7 | The Real Housewives of Atlanta on Bravo |
| October 9 | Kath & Kim on NBC |
| October 9 | Eleventh Hour on CBS |
| October 9 | Life on Mars on ABC |
| October 9 | SNL Thursday Night Live on NBC |
| October 9 | Testees on FX |
| October 13 | My Own Worst Enemy on NBC |
| October 13 | Unsolved Mysteries on Spike |
| October 17 | Crash on Starz |
| October 17 | Crusoe on NBC |
| October 17 | Ghost Adventures on Travel Channel |
| October 18 | Hulk Hogan's Celebrity Championship Wrestling on CMT |
| October 22 | Stylista on The CW |
| October 23 | 6teen on Cartoon Network |
| October 25 | D.L. Hughley Breaks the News on CNN |
| October 27 | Cars Toons: Mater's Tall Tales on Disney Channel |
| October 27 | Dead Set on E4 |
| November 14 | Batman: The Brave and the Bold on Cartoon Network |
| November 28 | The Penguins of Madagascar on Nickelodeon |
| December 7 | Leverage on TNT |
| December 29 | The City on MTV |
Read more about this topic: 2008 In American Television