This years listing of tv cancellations...

ABC

Better Off Ted - Officially canceled on May 13, 2010.
The Deep End - Officially canceled on May 14, 2010.
Defying Gravity - Officially canceled due to low ratings during the summer.
Eastwick - Officially canceled on November 9, 2009.
FlashForward - Officially canceled on May 13, 2010.
The Forgotten - Officially canceled on May 18, 2010.
Hank - Officially canceled on November 11, 2009.
Happy Town - Officially canceled on May 18, 2010.
Jamie Oliver's Food Revolution - Officially canceled on May 18, 2010.
Lost - Officially canceled on May 23, 2010.
Romantically Challenged - Officially canceled on May 13, 2010.
Scrubs - Officially canceled on May 13, 2010.
Ugly Betty - Officially canceled on April 14, 2010.
Wife Swap - Officially canceled on May 18, 2010.


CBS

Accidentally On Purpose - Officially canceled on May 18, 2010.
Cold Case - Officially canceled on May 18, 2010.
Gary Unmarried - Officially canceled on May 18, 2010.
Ghost Whisperer - Officially canceled on May 18, 2010.
Miami Medical - Officially canceled on May 18, 2010.
The New Adventures of Old Christine - Officially canceled on May 18, 2010.
Numb3rs - Officially canceled on May 18, 2010.
Three Rivers - Officially canceled on January 9, 2010.


The CW

The Beautiful Life - Canceled after two episodes on September 25, 2009 due to low ratings. The remaining episodes aired on YouTube on December 2009.
Blonde Charity Mafia - Officially canceled on May 20, 2010.
Fly Girls - Officially canceled on May 20, 2010.
High Society - Officially canceled on May 20, 2010.
Hitched or Ditched - Officially canceled on May 20, 2010.
Melrose Place - Canceled due to low ratings.


Fox

24 - Officially canceled on March 26, 2010.
Brothers - Officially canceled on March 29, 2010.
Dollhouse - Officially canceled on November 11, 2009.
King of the Hill - Officially canceled on September 13, 2009.
Past Life - Canceled after three episodes on February 19, 2010 due to low ratings.
Sons of Tucson - Canceled after four episodes on April 5, 2010 due to low ratings.
'Til Death - Brad Garrett confirmed the show's cancellation on March 23, 2010.


NBC

Heroes - Officially canceled on May 14, 2010.
The Jay Leno Show - See the 2010 Tonight Show conflict.
Law & Order - On May 13, 2010, NBC decided to cancel Law & Order after 20 seasons on the air (tying it with Gunsmoke as the longest-running primetime drama). The final episode will air on May 24, 2010.
Mercy - Officially canceled on May 14, 2010.
The Philanthropist - Officially canceled on October 21, 2009.
Southland - Officially canceled on October 8, 2009. Moved to TNT in January.
Trauma - Officially canceled on May 14, 2010.