"ZOOM is a children's show comprised of weekly half-hour episodes which showed what youngsters do and think. Seven ZOOMers hosted each episdoe, and the cast changed over run of series. ZOOM premiered locally as ""Summer-Do"" in 1970, and premiered nationally in January 1972. ZOOMers played games, told jokes, riddles (called Fannee Doolees) and stories and did crafts projects...and invited ideas from their audience. The result was an avalanche of ZOOMmail - in the first season, over 200,000 letters. Additionally, the Ubbi Dubbi language was invented by ZOOM."