2009–10 United States network television schedule

The following is the 2009–10 network television schedule for the five major English-language commercial broadcast networks in the United States. The schedule covers primetime hours from September 2009 through May 2010. The schedule is followed by a list per network of returning series, new series, and series canceled after the 2008–09 season.

PBS is not included; member stations have local flexibility over most of their schedules and broadcast times for network shows may vary. NBC stripped The Jay Leno Show weeknights at 10 pm Eastern/9 p.m. Central, but removed it after the Winter Olympics. The CW eliminated its Sunday night programming block and returned that time to local affiliates. After three years as a network, MyNetworkTV became a syndication programming service, and therefore not recognized as a network, but its programs are still listed in this article. Fox announced its schedule on May 18, both ABC and NBC on May 19, CBS on May 20, and The CW on May 21.

Although Glee became a Top 10 series when it began airing after American Idol on April 13, it did not rank in the Top 30 prime time programs when averaged with its Fall 2009 airings. Likewise, V began as a Top 40 series during its Fall 2009 airings. As the season progressed, it averaged outside of the Top 50 programs.

Returning series:

New series:

Not returning from 2008–09:

Returning series:

New series:

Not returning from 2008–09:

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