Question: What season was the mother promoted to a main character on how i met your mother and how many episodes did that season have?

Context articles: Girlfriends' Guide to Divorce
The Mother (How I Met Your Mother)
Harry's Law (season 2)
Child of All Nations
List of iCarly episodes
How I Met Your Mother (season 9)
Samantha Carter
Judging Amy
Two Kinds
List of Waterloo Road characters (series 8)

Girlfriends' Guide to Divorce (also known as Girlfriends' Guide to Freedom starting with season 3) is an American comedy-drama television series developed by Marti Noxon for the American cable network Bravo.
 Based on the "Girlfriends' Guides" book series by Vicki Iovine, the series revolves around Abby McCarthy, a self-help author who finds solace in new friends and adventures as she faces an impending divorce.
 Lisa Edelstein portrays the main character Abby.
 Beau Garrett, Necar Zadegan and Paul Adelstein co-star.
 Janeane Garofalo was part of the main cast for the first seven episodes of season 1 before departing the cast.
 She was replaced in episode 8 with Alanna Ubach.
 Retta recurred during the show's second season before being promoted to the main cast at the start of season 3.
Tracy McConnell, better known as "The Mother", is the title character from the CBS television sitcom "How I Met Your Mother".
 The show, narrated by Future Ted, tells the story of how Ted Mosby met The Mother.
 Tracy McConnell appears in 8 episodes from "Lucky Penny" to "The Time Travelers" as an unseen character; she was first seen fully in "Something New" and was promoted to a main character in season 9.
 The Mother is played by Cristin Milioti.
The second and final season of "Harry's Law", a legal dramedy created by David E. Kelley, premiered on NBC on September 21, 2011.
 Regular cast members during the season include Kathy Bates, Nathan Corddry, Karen Olivo, Mark Valley, and Christopher McDonald.
 Christopher McDonald was promoted to a main character after season one.
 Aml Ameen and Brittany Snow left the cast after season one but returned as guest stars in season two.
 The season was originally going to have thirteen episodes.
 On October 11, 2011, NBC ordered an additional six scripts, bringing the total to 19.
Child of All Nations is the second book in Pramoedya Ananta Toer's epic quartet called "Buru Quartet", first published by Hasta Mitra in 1980.
 "Child of All Nations" continues the story of the lives of the main character, Minke, and his mother in law, Nyai Ontosoroh.
 By describing the lives of these two people who live in the Dutch controlled islands of Java, Pramoedya is able to discuss many aspects of life in a colonized nation.
 "Child of All Nations" explores the social hierarchy in a colonized nation by giving glimpses of how the oppressed colonized peoples, such as the Javanese farmers, are required to be submissive to their occupiers, the Dutch.
 That wealthy, educated Javanese like Minke and Nyai were still considered inferior to the Dutch due to their Native birth status and frequently simply the color of their skin.
 The main theme of the novel is, as the title suggests, that the world is becoming more integrated as revealed in the life of the main character Minke, the self-proclaimed “child of all nations” .
 Minke speaks French, Dutch, Malay, and both high and low Javanese.
 He writes for a newspaper published in Dutch and has to come to terms with being a 'native' in a European controlled world.
 His worldview is jaded by the fact that he is wealthy and educated, and therefore closer to the Dutch than other Javanese; however, Minke comes to realize the ethical implications of the injustices being done to his people.
 His life is caught between two worlds, which the novel follows as he tries to understand who he really is, his role in the Dutch-occupied society, and his duty to his people.
"iCarly" is an American sitcom that originally aired on Nickelodeon from September 8, 2007, to November 23, 2012.
 The series stars Miranda Cosgrove as Carly Shay who becomes an Internet star.
 Nickelodeon promoted many episodes such as "iDo", "iHire an Idiot", "iPity the Nevel", "iDate Sam & Freddie", etc. as specials, despite their being regular episodes.
 The lower case "i" which begins the episode titles represents the internet, as in ""i"Carly".
 The show was nominated for an Emmy award for Outstanding Children's Program in 2009.
 The series ended on November 23, 2012, with the one-hour special episode "iGoodbye".
 A total of 7 seasons and 109 episodes were broadcast.
 The largest audience of the series was 11.2 million viewers, with the special episode "iSaved Your Life" premiered in January 2010.
The ninth and final season of "How I Met Your Mother", an American sitcom created by Carter Bays and Craig Thomas, premiered on CBS on September 23, 2013, with two episodes, and concluded on March 31, 2014.
 The show was renewed for the final season on December 21, 2012, after cast member Jason Segel changed his decision to leave the show after Season 8.
 Cristin Milioti, who was revealed as "The Mother" in the Season 8 finale, was promoted to a series regular, the only time "How I Met Your Mother" added a new regular cast member.
 Season 9 consists of 24 episodes, each running approximately 22 minutes in length.
Samantha "Sam" Carter, USAF is a fictional character in the Canadian–American military science fiction "Stargate" franchise.
 Played by Amanda Tapping, she appears in all three shows in the franchise: "Stargate SG-1", "Stargate Atlantis", and "Stargate Universe".
 She was a main character in all ten seasons of "Stargate SG-1" (1997–2007).
 Following a recurring role in "Stargate Atlantis" for three seasons (2004–07), Carter became a main character in Season 4 of "Atlantis" (2007–08), and also appeared in the 2008 direct-to-DVD "SG-1" films "" and "".
 Amanda Tapping accepted a starring role in "Sanctuary" and appears in only the first and last episodes in Season 5 of "Atlantis" (2008–09).
 Carter also appears in two episodes of Season 1 of "Stargate Universe."
Judging Amy is an American legal drama television series that was telecast from September 19, 1999, through May 3, 2005, on CBS.
 This TV series starred Amy Brenneman and Tyne Daly.
 Its main character (Brenneman) is a judge who serves in a family court for the Connecticut Superior Court's Hartford district; in addition to the family-related cases that she adjudicates, many episodes focus on her experiences as a divorced mother and on the experiences of her mother, a social worker in the field of child welfare.
 This series was based on the life experiences of Brenneman's mother.
"Two Kinds" is a short story from the book "The Joy Luck Club" by Amy Tan.
 It was first published in 1989.
 The short story outlines the main character Jing-mei Woo’s childhood and the effects of her mother’s high expectations for her life.
 It is clear that some of the events in the short story reflect events that happened in the author’s life.
 For example, the main character's mother left China, leaving behind her family and children.
 The same is true with Amy Tan's mother.
 In 1993, a movie based on the book was made.
The following is a list of characters who appear in the eighth series of the BBC school drama "Waterloo Road", in order of appearance.
 The Eighth Series consists of Thirty Episodes, first broadcast from 23 August 2012 to 4 July 2013.
 New Main Cast Members from Episode One include Head of English (later Head Teacher) Christine Mulgrew and History Teacher Audrey McFall, with Maggie Croft (later Budgen) and Lorraine Donnegan also promoted to the Main Cast.
 New Pupil Characters from Episode One include Christine's son Connor Mulgrew, Imogen Stewart, Jade Fleming, Lula Tsibi, Rhiannon Salt and Angus Hancock.
 Head of rival school Havelock High Gerald Findlay also appears in the first five episodes.
 Episode four sees the first of several appearances of Imogen's mother Sally Stewart; Michael Byrne's father Billy debuts in the same episode, and appears until his death in Episode Ten.
 Pupil Liberty Gordon first appears in Episode Five, and Kevin Skelton (later Chalk) also joins the supporting cast in Episode Eight.
 Lorraine's sister Sonya Donnegan joins the main cast as School Secretary from Episode Nine.
 Episode Eleven sees the Barry family, consisting of mother Carol and her children Barry, Dynasty and Kacey all join the supporting cast, with pupil Jack MacAllister also debuting in the same episode.
 Towards the end of the series, supporting characters of Maintenance Assistant Ndale Kayuni, Dynasty's former boyfriend Steve-O Malone and Acting Head of Science Esther Fairclough all appear.
 Angus Deayton and Richard Mylan join the cast as Head of Modern Languages George Windsor and Deputy Head Simon Lowsley in episodes Twenty-Seven and Twenty-Nine respectively.
 Recurring Character Robert Bain, Head of Greenock Education makes his first appearance in episode Twenty-Seven, and wife of George Windsor, Princess first appears in episode Twenty-Nine.