text: Treehouse TV (commonly known as Treehouse) is a Canadian English-language discretionary specialty channel for preschool children that was launched in 1997. Its name comes from sister network YTV's former programming block, "The Treehouse". The channel is owned by YTV Canada, Inc., a subsidiary of Corus Entertainment. Having launched on November 1, 1997, it is the first ever full-day preschool-oriented TV channel in Canada.
  Development of a separate channel started when YTV aired preschool shows as part of its weekday morning line-up. This block of shows was given the name "The Treehouse" in 1994. On November 1, 1997, Treehouse TV launched as its own channel, airing from 6 a.m. to 3 a.m. daily. The channel, as of 2003, is currently a 24-hour broadcaster.
  Like the block it was spun off from, commercials weren't broadcast when the Treehouse channel first launched. Instead, shorts hosted by humans and puppets were broadcast. As of 2011, Treehouse TV had been available to over 7.5 million homes across Canada.
  History
  The Treehouse block
  The Treehouse brand began as a daily programming block for children on YTV. The block was given the name "The Treehouse" in 1994. Commercials for the block weren't shown. Instead, the block was hosted by three program jockeys (or "PJs") named PJ Katie, PJ Krista, and PJ Todd. In between shows, the PJs made crafts, played games, and held contests. As the block's name suggests, these segments were set in a tree house.