name a few channels or broadcasters that air such a sitcom?
CBS, ABC
Teen sitcom
The first teen sitcom on a major network was "The Many Loves of Dobie Gillis", a 1959–1963 CBS sitcom based on collegiate short stories by humorist Max Shulman. "Dobie Gillis" followed the adventures of a teenage boy and his friends through high school, the military, and college, and was the first American network television program to feature teenagers (played by Dwayne Hickman and Bob Denver, actors in their twenties at the time) as its lead characters.

In the mid-1960s, the creation of sitcoms such as "The Monkees" and "Gidget" were primarily targeted towards teenage audiences. The 1969–1974 ABC sitcom "The Brady Bunch" was very popular with younger audiences, especially pre-teens and younger teenagers,
where was the wizards of waverly place filmed UNANSWERABLE is it a tv ahow? Yes. American fantasy teen sitcom what is the meaning of the above mentioned sitcom? UNANSWERABLE when did such a sitcom start to broadcast? 1954
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Teen sitcom [SEP] 1940s–1980s
The first teen sitcom on a major network was "The Many Loves of Dobie Gillis", a 1959–1963 CBS sitcom based on collegiate short stories by humorist Max Shulman. "Dobie Gillis" followed the adventures of a teenage boy and his friends through high school, the military, and college, and was the first American network television program to feature teenagers (played by Dwayne Hickman and Bob Denver, actors in their twenties at the time) as its lead characters. In the mid-1960s, the creation of sitcoms such as "The Monkees" and "Gidget" were primarily targeted towards teenage audiences. The 1969–1974 ABC sitcom "The Brady Bunch" was very popular with younger audiences, especially pre-teens and younger teenagers, as was its competitor "The Partridge Family", which premiered in 1970.