Question: How many seasons did the sitcom which Bobby Gaylor acted for have? 

Context articles: Adam Zejer
Fred Campbell (basketball)
Children's Theatre Company
Bobby Gaylor
List of pre-NHL seasons
RK Gorenje Velenje
Anders Carlsson
Bobby Hauck
Marc Bonilla
Roseanne Barr

Zejer spent two seasons in the Turkish Super Lig with Beşiktaş J.K. and Gaziantepspor and many seasons in the Ekstraklasa with Zagłębie Lubin and Stomil Olsztyn.
Fred Gaines Campbell (August 8, 1920 – December 3, 2008) was an American professional basketball player and coach as well as minor league baseball player.
 He played in the National Basketball League for the Detroit Gems and Detroit Vagabond Kings.
 While playing for the Gems he served as the head coach during the second half of the season after coach Joel Mason resigned.
 In many seasons with the Vagabond Kings, except for the only one in which the franchise played in the NBL (the rest of the years they were independent), Campbell also served as a player-coach.
 In two seasons as an NBL player, Campbell averaged 5.8 points per game.
The Children's Theatre Company (formerly known as The Moppet Players from 1961 to 1965) is a regional theatre established in 1965 in Minneapolis, Minnesota, specializing in plays for families, young audiences and the very young.
 The theatre is the largest theatre for multigenerational audiences in the United States and is the recipient of 2003 Tony Award for Outstanding Regional Theatre.
 The founding is credited to John Clark Donahue and Beth Linnerson.
 Many productions are adaptations from children's literature including Pippi Longstocking, The 500 Hats of Bartholomew Cubbins, "Cinderella", How The Grinch Stole Christmas, A Year with Frog and Toad and "Alice in Wonderland" that have been in the company's repertoire for many seasons.
 Among their early premiere productions was Richard Dworsky's musical version of "The Marvelous Land of Oz", which was one of several productions to be issued on video in the early 1980s.
 The casts themselves are a mix of adult and young adult performers.
Robert "Bobby" Gaylor,Jr. is an American writer, actor, voice actor, producer, director, spoken word artist and former stand-up comic.
 He was raised in Boston and moved to L.A. to write for Roseanne Barr's television sitcom "Roseanne".
 He later paired his comedy writing and life stories with music, and along with his friends and fellow musicians Marc Bonilla and Michael Scott, recorded and released an album on Atlantic Records, called "Fuzzatonic Scream".
Prior to the first season of the National Hockey League (NHL), which commenced on December 19, 1917, there had been many seasons of ice hockey played by various amateur and professional leagues, often held contemporaneously, going back to the 1880s, to which the NHL can trace its roots.
 Below is a list of pre-NHL seasons by ice hockey leagues that are precursors of the National Hockey League.
Rokometni Klub Gorenje Velenje (English: Gorenje Velenje Handball Club ), commonly referred to as RK Gorenje or simply Gorenje, is a Slovenian handball club from Velenje.
 They play their games at the Red Hall ("Rdeča dvorana ").
 The club has many selections ranging from junior to professional teams.
 The club's greatest achievements were four republic championship titles (1972–73, 1980–81, 1984–85 and 1988–89) in the former Yugoslavia.
 Since the Slovenian independence, the club has won three league titles (2008–09, 2011–12, and 2012–13), and one Slovenian handball cup title (2002–03).
 The club also participated in the EHF competitions for many seasons, including the EHF Cup, the EHF Cup Winners' Cup, and the EHF Champions League.
 Currently, Gorenje competes in the Slovenian First League.
 Together with Celje, they are the only club that have participated in every season of the Slovenian First League since its formation in 1991.
Anders "Masken" Carlsson (born 25 November 1960 in Gävle, Sweden) is a Swedish retired ice hockey center who played parts of three seasons with the New Jersey Devils in the National Hockey League and many seasons in the Elitserien for Brynäs IF, Södertälje SK, VIK Västerås HK and Leksands IF.
 In addition to playing in the 1987 Canada Cup, he represented Sweden six times at the World Championships, winning gold medals in 1987 and 1991, and silver medals in 1986, 1990 and 1997.
 He is currently an amateur scout for the Colorado Avalanche He is currently General Manager of SHL-team Rögle BK.
Robert Lawrence Hauck (born June 14, 1964) is a college football coach, currently the special teams coordinator for the San Diego State football team.
 He most recently was the head coach at UNLV Rebels.
 Hauck was previously the head coach at Montana, where he led the Grizzlies to seven conference titles and postseason berths in as many seasons, including three national championship game appearances.
 In 2013, following three losing seasons at UNLV, Hauck led the Rebels to their first winning season since 2000.
Marc Bonilla is an American guitarist and composer.
 He has worked with Keith Emerson (including on 1995's "Changing States" and in Emerson's 2006 touring band), Ronnie Montrose, Glenn Hughes (on "Addiction" (produced, co-written and performed), "The Way It Is", 1999, also playing keyboards), David Coverdale (late 2000 live band) and Kevin Gilbert (Toy Matinee live band).
 He also appears on the Emerson, Lake & Palmer tribute album "Encores, Legends & Paradox" (Magna Carta Records, 1999) and a spoken word album with comedian Bobby Gaylor for Atlantic entitled "Fuzzatonic Scream" including the controversial single, "Suicide" in 1998.
Roseanne Cherrie Barr (born November 3, 1952) is an American actress, comedian, writer, and television producer.
 She was also the 2012 presidential nominee of the California-based Peace and Freedom Party.
 Barr began her career in stand-up comedy at clubs before gaining fame for her role in the hit television sitcom "Roseanne".
 The show ran for nine seasons, from 1988 to 1997.
 She won both an Emmy and a Golden Globe Award for Best Actress for her work on the show.
 It was announced in 2017 that an eight episode revival of the show will air in 2018.
 Barr had crafted a "fierce working-class domestic goddess" persona in the eight years preceding her sitcom and wanted to do a realistic show about a strong mother who was not a victim of patriarchal consumerism.