CBS

Columbia Broadcasting System (otherwise known as CBS) is an American English language commercial broadcast television and radio network that is a flagship property of CBS Corporation. The company is headquartered at the CBS Building in New York City with major production facilities and operations in New York City and Los Angeles, founded in 1928 by Arthur Judson.
School and the Backyard Gang first aired on CBS on April 24th, 1962 (the day after the channel had an anonymous breakdown). The programme was eventually complemented by Weekend entertainment show School and the Backyard Gang Mountain and both proved to be a training ground where on and off-air talent cut their teeth.