February 5, 2007

The first season of the American television comedy series Rules of Engagement premiered on February 5, 2007 and concluded on March 19, 2007. It consists of 7 episodes, each running approximately 22 minutes in length. CBS broadcast the first season at 9:30 pm in the United States.

September 24, 2007

The second season of the American television comedy series Rules of Engagement premiered on September 24, 2007 and concluded on May 19, 2008. It consists of 15 episodes, each running approximately 22 minutes in length. CBS broadcast the second season at 9:30 pm in the United States. No new episodes of the program aired between December and March, due to the 2007-2008 Writers Guild of America strike.

March 2, 2009

The third season of the American television comedy series Rules of Engagement premiered as a mid-season entry on March 2, 2009 and concluded on May 18, 2009. It consists of 13 episodes, each running approximately 22 minutes in length. CBS broadcast the third season at 9:30 pm in the United States.

March 1, 2010

The fourth season of the American television comedy series Rules of Engagement premiered as a mid-season entry on March 1, 2010 and concluded on May 24, 2010. It consists of 13 episodes, each running approximately 22 minutes in length. CBS broadcast the fourth season on Monday at 8:30 pm in the United States between How I Met Your Mother and Two and a Half Men.

September 20, 2010

The fifth season of the American television comedy series Rules of Engagement premiered on September 20, 2010. It consisted of 24 episodes, each running approximately 22 minutes in length, marking the first time that the program received a full-season order. CBS initially broadcast the fifth season on Mondays at 8:30 pm ET in the United States between How I Met Your Mother and Two and a Half Men. In February, the show moved to 8:30 ET on Thursdays, following The Big Bang Theory.

October 20, 2011

The sixth season of the American television comedy series Rules of Engagement initially received a 24-episode order and was set to debut on Saturday, October 15, 2011, but relocated to Thursdays due to the low ratings developing from How to Be a Gentleman. After CBS announced the two comedies would swap timeslots, they set the Season 6 debut as October 20, 2011 at 8:30 PM. Effective January 12, 2012, CBS removed Rules of Engagement from its Thursday lineup, replacing it with the new sitcom Rob starring Rob Schneider. CBS announced that Rules would return to its Thursday 8:30 PM time slot at a later date. After Rob's run of its initial eight episode order, Rules returned March 29 for eight weeks of new episodes. Thus, the sixth season was cut from 24 episodes to 15.

February 4, 2013

The seventh and final season of the American television comedy series Rules of Engagement received a 13-episode order on May 21, 2012, and premiered on Monday, February 4, 2013. On May 10, 2013, CBS cancelled Rules of Engagement, stating that the May 20, 2013 season finale would also be the series finale.