DOCTOR WHO is a 45-year old science fiction program originally airing on the BBC. The longevity of the show has to do with certain factors, including its inventive use of its relatively small budget, its enormously rabid fanbase, and the fact that the actors rarely stay on for longer than a few years (the main character himself has been played by ten different actors due to "regeneration").

The Doctor is a 903-year-old (maybe - don't get us started on all the various continuity issues) Time Lord who travels through time and space in his TARDIS. He usually travels with a companion, most of whom are young women.

In the new DOCTOR WHO, executive produced by QUEER AS FOLK's Russell T. Davies, the Doctor's planet Gallifrey and all the other Time Lords were destroyed in the Time War with the Daleks. In the first series of the new series, the Ninth Doctor (Christopher Eccelston) traveled with Rose Tyler (Billie Piper). In the second series, David Tennant took over as the Tenth Doctor and in the third, Rose was replaced by Martha Jones (Freema Agyeman). That's all that has aired on the Sci-Fi Channel so far, though the BBC is currently airing Series Four.

DOCTOR WHO also has two current spin-offs: the more adult TORCHWOOD and the younger oriented THE SARAH JANE ADVENTURES.

Series One (The Ninth Doctor)

1. 1 Rose (3/26/2005)
2. 2 The End of the World (4/2/2005)
3. 3 The Unquiet Dead (4/9/2005)
4. 4 Aliens of London (1) (4/16/2005)
5. 5 World War Three (2) (4/23/2005)
6. 6 Dalek (4/30/2005)
7. 7 The Long Game (5/7/2005)
8. 8 Father's Day (5/14/2005)
9. 9 The Empty Child (1) (5/21/2005)
10. 10 The Doctor Dances (2) (5/28/2005)
11. 11 Boom Town (6/4/2005)
12. 12 Bad Wolf (1) (6/11/2005)
13. 13 The Parting of the Ways (2) (6/18/2005)

Series Two (The Tenth Doctor)

1. 0 The Christmas Invasion (12/25/2005)
2. 1 New Earth (4/15/2006)
3. 2 Tooth and Claw (4/22/2006)
4. 3 School Reunion (4/29/2006)
5. 4 The Girl in the Fireplace (5/6/2006)
6. 5 Rise of the Cybermen (1) (5/13/2006)
7. 6 The Age of Steel (2) (5/20/2006)
8. 7 The Idiot's Lantern (5/27/2006)
9. 8 The Impossible Planet (1) (6/3/2006)
10. 9 The Satan Pit (2) (6/10/2006)
11. 10 Love & Monsters (6/17/2006)
12. 11 Fear Her (6/24/2006)
13. 12 Army of Ghosts (1) (7/1/2006)
14. 13 Doomsday (2) (7/8/2006)

Series Three

1. 0 The Runaway Bride (12/26/2006)
2. 1 Smith and Jones (3/31/2007)
3. 2 The Shakespeare Code (4/7/2007)
4. 3 Gridlock (4/14/2007)
5. 4 Daleks in Manhatten (1) (4/21/2007)
6. 5 Evolution of the Daleks (2) (4/28/2007)
7. 6 The Lazarus Experiment (5/5/2007)
8. 7 42 (5/19/2007)
9. 8 Human Nature (1) (5/26/2007)
10. 9 The Family of Blood (2) (6/2/2007)
11. 10 Blink (6/9/2007)
12. 11 Utopia (1) (6/16/2007)
13. 12 The Sound of Drums (2) (6/23/2007)
14. 13 The Last of the Time Lords (3) (6/30/2007)

Series Four (currently airing on BBC)

1. 0 Voyage of the Damned (12/25/2007)
2. 1 Partners in Crime (4/5/2008)
3. 2 The Fires of Pompeii (4/12/2008)
4. 3 Planet of the Ood (4.12.08)
   
5. 4 The Sontaran Stratagem (4.26.08)
   
6. 5 The Poison Sky (5.03.08)
   
7. 6 The Doctor’s Daughter (5.10.08)
   
8. 7 The Unicorn and the Wasp (5.17.08)
   
9. 8 Silence in the Library (5.31.08)
   
10. 9 Forest of the Dead (6.07.08)
    
11. 10 Midnight (6.14.08)
    
12. 11 Turn Left (6.21.08)