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CBET Windsor is still on Channel 9, though they went DTV on 9/1/2011 (IIRC). Their virtual channel is 9 and they actually transmit on 9.
CBEFT began on Channel 78 in 1976. They moved to 54 several years later (1982, IIRC). This was to make room for cellular telephone, but it also improved reception in my Eastside Detroit neighborhood. To do this, the FCC took vacant channel 54 away from Toledo to give it to Windsor, and gave channel 36 to Toledo as a replacement. CBEFT was moved again, to Channel 35, with much less power, and that did not last a year (CBC decided that if you did not live in a large city AND speak the dominant language, you'll have to pay a premium price for it).
Several American UHFs were on the higher channels in the early days of UHF. Youngstown had a channel 83, Lima a 73, and Bowling Green a 70 - all the way to the mid-1970s, when they moved to 57 (and further to 27 in the mid-1980s). The higher UHF channels proved to be "naturally unattractive". Transmitters were not as efficient, tuners had a higher noise figure, attenuation from trees (especially needleleaf) greater, and multipath worse than on the lower UHF channels.
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