With the end of the DTV transition, the future use of TV channels 5 and 6, about which we have written before, is now back before the Commission in connection with an FCC filing by the Minority Media and Telecommunications Council, whose "radio rescue petition" was recently placed on a public notice opening a 30 day public comment period. The FCC already has before it comments filed in its Diversity proceeding suggesting that these channels be reallocated for radio use, as Channel 6 is immediately adjacent to the lower end of the FM band, and the sound from many analog channel 6 TV stations could be heard on FM receivers. While this petition has been opposed by certain TV interests, it is interesting to note that many television operators have been acknowledging that VHF channels, which had been the preferred channels for analog operations, may not be as advantageous for digital use, especially in urban areas, and may be particularly problematic for use with mobile digital television systems which are about to be introduced.
In an analog world, VHF channels (those between 2 and 13) were prized by broadcasters, as stations operating on those channels could operate at power levels significantly lower than UHF stations (saving electricity costs), and still cover greater areas. Many broadcasters thought that these benefits, particularly the lower power costs, would carry over into the digital world, and opted to remain on VHF channels for their digital operations – in some case abandoning the UHF temporary transition channel on which they were operating digitally during the period when they were running both a digital and an analog station before the end of the transition, to return to their VHF channel for their final digital operation. Right after the digital transition was complete and these stations had moved back to their old VHF channels for their digital operations, in several major markets, many broadcasters operating on VHF channels found that their digital operations had significant problems, as the power levels were insufficient to reach many over-the-air sets, particularly those using "rabbit ears" antennas in urban areas.