The 2007–08 network television schedule for the six major English language commercial broadcast networks in the United States. The schedule covers prime time hours from September 2007 through August 2008. The schedule is followed by a list per network of returning series, new series, and series canceled after the 2006–07 season. The schedule was affected by the 2007–08 Writers Guild of America strike. After that, the next disruption to the networks' primetime schedules would not occur until the 2020–21 season, whose network schedules were affected by the suspension of film and television productions as a result of the COVID-19 pandemic. NBC was the first to announce its fall schedule on May 14, 2007, followed by ABC on May 15, CBS on May 16, Fox and The CW on May 17, and MyNetworkTV on August 24, 2007. This was the first TV season where Nielsen Media Research kept track of DVR ratings (live plus same day; C3; live plus 7) PBS is not included; member stations have local flexibility over most of their schedules and broadcast times for network shows may vary. New series are highlighted in bold. All times are U.S. Eastern and Pacific Time (except for some live sports or events). Subtract for one hour for Central, Mountain, Alaska and Hawaii-Aleutian times. All NBC programming from August 8, 2008 to August 24, 2008 was pre-empted for coverage of the 2008 Summer Olympics in Beijing. Each of the 30 highest-rated shows is listed with its rank and rating in parenthesis (#rank / rating), as determined by Nielsen Media Research. Legend Sunday Extreme Makeover: Home Edition aired two-hour episodes on January 13 through January 27. Viva Laughlin aired two episodes (the pilot on October 18 and the 2nd episode on October 21st) before it was cancelled. Monday NBC aired Clash of the Choirs for four consecutive nights starting on December 17, 2007. ABC aired Duel for six nights for the week starting on December 17, 2007. American Gladiators premiered Sunday, January 6, 2008 at 9:00PM Eastern/8:00PM Central before moving to Mondays at 8:00PM Eastern/7:00PM Central. Terminator: The Sarah Connor Chronicles premiered Sunday, January 13, 2008 at 8:00PM Eastern/7:00PM Central before moving to Mondays at 9:00PM Eastern/8:00PM Central. Season 7 of 24 was supposed to start in 2008, but delayed to 2009 due to the WGA strike. Tuesday According to Jim premiered on January 1, 2008 with two 30 minute episodes. Then