Why is CBS all the way up the TV dial at Channel 46? When Fox Television acquired NFL rights in 1994, it sent several markets into a realignment of network affiliations. CBS lost its long-time affiliation with WAGA Channel 5 in Atlanta, as well as in places like Detroit and Milwaukee.
Those stations didn't want to be without pro football so they affiliated with Fox and that left CBS scrambling for new affiliations. In Atlanta, it meant affiliating with Channel 46, in Milwaukee with Channel 19 and in Detroit CBS was forced off Channel 2. The network had to buy a station at Channel 62.
Of course, when TV broadcasting switched from analog to digital, these channel numbers simply became factors in branding. Few TV stations today are really on the channel they say they are. But since everyone knew these stations by their analog channel positions, they've kept them for advertising reasons. WGCL is really on Channel 19. WSB-TV is really on 32. WXIA is really on 10. But I'm sure most viewers have no idea.