Question: How many episodes were in the seventh season of the show that premiered September 20, 2010 on CBS?

Context articles: The Office (U.S. season 7)
The Good Wife (season 7)
The Lair
Regular Show (season 7)
Law &amp; Order: Special Victims Unit (season 7)
Hawaii Five-0 (2010 TV series, season 7)
List of Are You the One? episodes
List of Undercover Boss (U.S. TV series) episodes
Hawaii Five-0 (2010 TV series)
Supernatural (season 7)

The seventh season of the American television comedy "The Office" premiered on September 23, 2010 and concluded on May 19, 2011 on NBC.
 The season consisted of 26 half-hours of material, divided into 22 half-hour episodes and two hour-long episodes.
 The seventh season aired on Thursdays at 9:00 p.m. (ET) as part of Comedy Night Done Right.
 This was the last season to feature Michael Scott, played by Steve Carell, as the lead character.
 The seventh season was released on DVD and Blu-ray in region 1 on September 7, 2011.
The seventh season of "The Good Wife" was ordered on May 11, 2015, by CBS.
 It premiered on October 4, 2015, on CBS and consisted of 22 episodes.
 A promotional advertisement for the series that aired during Super Bowl 50 announced that the seventh season would be its last.
The Lair is an American gay-themed vampire television series produced by here!
 in 2007.
 The first season, consisting of six episodes, wrapped production in January of that year.
 The first two episodes premiered on June 1, 2007.
 Season 2, consisting of 9 episodes debuted on September 5, 2008.
 A third season of 13 episodes was announced in September 2008 and Colton Ford confirmed that filming took place in October and November 2008.
 Season 3 premiered September 4, 2009.
The seventh season of the American animated comedy television series "Regular Show", created by J. G. Quintel, originally aired on Cartoon Network in the United States.
 Quintel originally created the series' pilot using characters from his comedy shorts for the cancelled anthology series "The Cartoonstitute".
 He developed "Regular Show" from his own experiences in college, while several of its main characters originated from his animated shorts "The Naïve Man from Lolliland" and "2 in the AM PM".
 He himself voices one of the main characters in the show, "Mordecai", a blue jay.
 The series was renewed for a seventh season at the 2014 San Diego Comic-Con International on July 25, 2014.
 The previous season contained 31 episodes in order to accommodate for the and this season will contain the normal 40 episodes from the previous seasons.
 However, it was technically 39 episodes because the last episode of the season was used for the five shorts which were broadcast on Cartoon Network in March and April 2016.
 Therefore, the five shorts took up one production code for the 40 episodes.
The seventh season of the television series, "" premiered September 20, 2005 and ended May 16, 2006 on NBC.
 It aired on Tuesday nights at 10pm/9c.
 Critically the show's most successful season, both lead actors received nominations at the 2006 Emmy Awards with a win by Mariska Hargitay.
The seventh season of the CBS police procedural drama series "Hawaii Five-0" premiered on Friday September 23, 2016, and concluded on May 12, 2017.
 The season contained 25 episodes, and the series's 150th episode.
 For the 2016-17 U.S. television season, the seventh season of "Hawaii Five-0" ranked #15 with an average of 12.15 million viewers, and in the 18–49 demographic ranked 43rd with a 1.8/7 Rating/Share.
"Are You the One?
" is a United States reality television series on MTV.
 It follows 20 people who are living together to find their perfect match.
 If all 20 singles are able to match up with their predetermined partners within 10 attempts, they share the largest cash prize ever awarded by an MTV show and walk away with a potential partner for life.
 The first season was filmed in Hawaii and premiered January 21, 2014.
 The second season premiered October 6, 2014.
 The third season premiered September 25, 2015 and was filmed in Puerto Rico.
 The fourth season premiered June 13, 2016 and was filmed in Hawaii.
 The fifth season premiered on January 11, 2017 and was filmed in Cabarete, Dominican Republic.
 The sixth season will premiere on September 20, 2017 and was filmed in New Orleans, Louisiana.
"Undercover Boss" is an American 2010 reality television series, based on the British series of the same name.
 The first episode of the first season premiered on February 7, 2010, after Super Bowl XLIV, and featured Bob O'Donnell, President and Chief Operating Officer of Waste Management, Inc.
 On March 9, 2010, CBS announced it had renewed "Undercover Boss" for a second season.
 On July 28, 2010, CBS announced four company executives had signed up for the second season of "Undercover Boss", the executives are from NASCAR, DirecTV, Chiquita Brands International and Great Wolf Lodge, Inc. The Choice Hotels CEO, Steve Joyce, was the first boss for the second season of the show on September 26, 2010.
 On March 27, 2011, CBS officially renewed "Undercover Boss" for a third season.
 On May 18, 2011, CBS then announced that it would be holding the show for a mid-season replacement to premiere Sunday January 15, 2012, with an undetermined amount of episodes.
 The third season premiered on January 15, 2012.
 The fourth season premiered on November 2, 2012.
 The fifth season premiered on September 27, 2013.
 The sixth season premiered on December 14, 2014.
 The eighth season premiered on December 21, 2016.
Hawaii Five-0 is an American action police procedural television series, which premiered on Monday, September 20, 2010 on CBS.
 The series is a reboot of the original series, which aired on CBS from 1968 to 1980.
 Like the original, it follows an elite state police task force set up to fight crime in the state of Hawaii.
 The series is produced by K/O Paper Products and 101st Street Television in association with CBS Productions, originally an in-name-only unit of but folded into CBS Television Studios, which has produced the series since the beginning of season three.
 On March 25, 2016, CBS renewed the series for a seventh season, which premiered on September 23, 2016.
 On March 23, 2017, CBS renewed the series for an eighth season, which premiered on September 29, 2017.
The seventh season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered September 23, 2011, and concluded May 18, 2012, airing 23 episodes.
 The season focuses on protagonists Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) facing a new enemy called Leviathans, stronger than they have encountered so far as well as rendering their usual weapons useless.