There were three reasons for disaffiliating from CBC: Hamilton is part of the Toronto market, and Toronto-based CBLT already provided full network service to some of CHCH's viewing area; CBLT was about to increase its transmitter power and change frequencies (from VHF channel 9 to channel 6, and eventually channel 5), resulting in a near-100 percent overlap with CHCH; and the station's managers wanted to produce more local programming, instead of being forced to carry CBC programming.