I don't understand your first sentence. As for OTA bandwidth, they're more interested in UHF rather than what would be VHF-Mid. As for expanding the F.M. band downward in frequency, why is this any different from 20-30 years ago when A.M. was expanded to 1700? It didn't take long for the radios to go to 1700 & I've even come across a few radios already that tune F.M. down to 76. It could be the start of worldwide expansion of F.M. to go from 76-108. The Japanese are already making radios to do this.
As for any other use for A.M., all I can think of to replace that portion of spectrum would be aircraft beacons (do they still use those?) or amateur, like what is happening with the former ship-shore C.W. frequencies. Amateurs have gained a band from 472-479kc..
Regarding 87.9MHz/Channel 200 & 87.7 (I suppose this would be 199), I have no objections to those becoming part of the F.M. band. As I've said, I think it should be expanded to 76 anyway.
Finally, let's remember digital TV does horribly on VHF-lo. That's why hardly anybody is using those channels unless they absolutely have to do so. The TV channels the F.C.C. wants to reclaim next are 31-51 to give to wireless. I can't see anyone salivating over 76-88. I think it was the F.C.C. but can't remember right now who said T.V. would be channels 14-30 and all networks in a community could be on 1 multiplexed channel. I guess they are talking about all main networks, not things like home shopping.