The FCC has just released a 3rd NPRM on LPTV. However, of interest here is this proposal:
E. Operation of Analog Radio Services by Digital LPTV Stations as Ancillary or Supplementary Services
47. We seek comment on whether to allow LPTV stations on digital television channel 6 (82- 88 MHz) to operate analog FM radio-type services on an ancillary or supplementary basis pursuant to section 73.624(c) of the rules.109 Currently, some analog LPTV stations licensed on channel 6 are operating with very limited visual programming and an audio signal that is programmed like a radio station. FM radio listeners are able to receive the audio portion of these LPTV stations at 87.76 MHz, which is adjacent to noncommercial educational (NCE) FM channel 201 (88.1 MHz). When these LPTV stations convert to digital, however, they are unable to continue providing such radio service because the digital audio portion of their signal can no longer be received by standard FM receivers.
48. LPTV stations have been proposing engineering solutions to allow their continued FM radio-type operation following their conversion to digital.110 For example, a station has proposed using a single transmitter that allows a digital visual and audio stream, as well as a separate analog audio transmission, to simultaneously operate a digital LPTV station on channel 6 and an analog FM radio-type service at 87.76 MHz.111 Under this proposal, we would treat the analog FM audio transmission as an “ancillary or supplementary” service offering under section 74.790(i) of the Commission’s rules, which provides that “a digital LPTV station may offer services of any nature, consistent with the public interest, convenience, and necessity, on an ancillary or supplementary basis in accordance with the provisions of § 73.624(c) . . . .”112
You can read more about it here:
http://transition.fcc.gov/Daily_Releases/Daily_Business/2014/db1010/FCC-14-151A1.pdf
E. Operation of Analog Radio Services by Digital LPTV Stations as Ancillary or Supplementary Services
47. We seek comment on whether to allow LPTV stations on digital television channel 6 (82- 88 MHz) to operate analog FM radio-type services on an ancillary or supplementary basis pursuant to section 73.624(c) of the rules.109 Currently, some analog LPTV stations licensed on channel 6 are operating with very limited visual programming and an audio signal that is programmed like a radio station. FM radio listeners are able to receive the audio portion of these LPTV stations at 87.76 MHz, which is adjacent to noncommercial educational (NCE) FM channel 201 (88.1 MHz). When these LPTV stations convert to digital, however, they are unable to continue providing such radio service because the digital audio portion of their signal can no longer be received by standard FM receivers.
48. LPTV stations have been proposing engineering solutions to allow their continued FM radio-type operation following their conversion to digital.110 For example, a station has proposed using a single transmitter that allows a digital visual and audio stream, as well as a separate analog audio transmission, to simultaneously operate a digital LPTV station on channel 6 and an analog FM radio-type service at 87.76 MHz.111 Under this proposal, we would treat the analog FM audio transmission as an “ancillary or supplementary” service offering under section 74.790(i) of the Commission’s rules, which provides that “a digital LPTV station may offer services of any nature, consistent with the public interest, convenience, and necessity, on an ancillary or supplementary basis in accordance with the provisions of § 73.624(c) . . . .”112
You can read more about it here:
http://transition.fcc.gov/Daily_Releases/Daily_Business/2014/db1010/FCC-14-151A1.pdf