CHEX-TV is a television station in Peterborough, Ontario, Canada, and an affiliate of the CBC Television network. It began broadcasting on March 26, 1955, with an NHL ice hockey game. The station broadcasts over-the-air on channel 12.
It was founded by a media partnership that already published the Peterborough Examiner newspaper and owned radio station CHEX. The partnership included politician Rupert Davies, who was also involved in a similar arrangement in Kingston that established CKWS-TV. Since April 13, 2000, it has been owned by Canadian media conglomerate Corus Entertainment.
Local newscasts, branded as Newswatch, air weeknights at 5:30, 6:00, and 11:00 p.m, with repeats the next morning. (On public holidays, CHEX's 6PM newscasts are replaced with CBLT's CBC News at 6 from Toronto.) Although, in early 2006, it agreed to extend its CBC affiliation "for years to come" (), its proximity to Toronto's CBLT means that non-core network programming can be, and often is, preempted without causing a tremendous loss in CBC service to local cable viewers, as CBLT is carried on cable in Peterborough. CHEX-TV is also carried on digital cable on the eastern edge of the Greater Toronto Area. As a private CBC affiliate, CHEX-TV airs only the minimum amount of CBC programming (40 hours per week), and fills the rest of its schedule with overflow programming from E! Canada.
CHEX-TV-2 in the Durham Region, formerly a semi-satellite, now airs a very different schedule from the Peterborough station. CHEX originally operated two rebroadcast transmitters on Channels 2 and 10, in Bancroft and Minden, respectively. The Bancroft transmitter, still on the air today, switched to Channel 4 before the Global Television Network established a transmitter there on Channel 2 in 1974. The Minden transmitter switched to Channel 7 at some point, and shut down in the early or mid-1980s. The Oshawa transmitter was added in 1992 in order to overcome an impaired signal for Channel 12 in that area, and began airing separate programming a year later.