There are dozens of stations that use their cable channel position as their main on-air identifier, including pretty much the entire markets of Fort Myers-Naples and Palm Springs. What, if anything, does that have to do with the original question? (Wait - I'll answer that: the only Fort Myers commercial station that doesn't brand with its cable channel is also the only heritage VHF station in town, WINK-TV 11. They don't brand with a channel number at all, and so they do fit the original question.)
Regardless of how they brand their product on-screen, all the former UHF stations in Fort Myers and Palm Springs - and WMYT, for that matter - use their former analog UHF channel as their over-the-air virtual channel. WMYT over the air is "55.1," not "12.1."