From Wiki:
"In 1953, WNEX and Douglas, Georgia radio station WOKA combined to invest in one of the south's first UHF TV stations, WETV channel 47. They hoped that, by signing with the NBC network, central Georgians would buy the set-top adaptors required to watch the station. The two locally-owned stations planned to use profits from the operation of their AM radio outlets to keep the TV station going until it could turn a profit.
WETV operated out of a new building on Macon's Pio Nono Avenue and placed advertising in Atlanta's "TV Digest," the precursor to TV Guide, and in the trade industry magazine Broadcasting in hopes of attracting national advertising. In a matter of weeks, the expense of running the station (particularly the power bill; UHF transmitters were very inefficient) caused the owners to rethink their investment in the blossoming television industry.
WETV soon changed call letters to WOKA, then briefly to WNEX. In turning the station off, WNEX asked that Macon's channel 47 not be deleted from the FCC database while the owner tried to find a way to return to the air. The station never did. The combination of few potential viewers, the expense of running the station, and crushing competition from crosstown CBS affiliate WMAZ TV 13 (whose signal could be received on all TV sets) made UHF impractical for decades.
Several years after WETV left the air, the WETV call letters were reassigned to Atlanta's first educational TV station operating on Channel 30. NBC didn't get a middle Georgia affiliate until 1968 when channel 41 WCWB TV signed on the air."
http://en.wikipedia.org/wiki/WNEX
The old station building on Pio Nono Avenue was later taken over by Pet Dairy Company, and was torn down many years later (to build K-Mart, IIRC). At the time the TV station was there, WIBB Radio had their AM transmitter only a block or so away. Maybe that's why they built on the opposite side of town from WMAZ-TV.
Somewhere back home, I still have one of those UHF to VHF Converters.