The discussion I've read so far has been good. I think there are two types of LPTV programming that need different solutions. Programming that appeals to a reasonably wide audience, like Hot TV, RTV, etc. is much like full-power programming; I think the best solution for those stations is to go the class A route. Perhaps they could be rewarded for doing so with easier cable/satellite access.
I doubt we'd see very many shopping & all-infomercial channels opting to go class A, since they'd have to meet new requirements (such as E/I programming, I think). Anything that discourages these guys is a plus IMO.
The other type is hyperlocal programming that targets a geographically-concentrated audience. Some of the Godcasters fall into this category, as well as local ethnic programming. Cable/satellite coverage isn't practical for this type of programming, but few potential viewers can watch easily if the signal comes from Cedar Hill.
For the hyperlocal programming, how about this idea: we limit the covered population, but keep the current power limits. LPTVs could limit their coverage by other means, such as antenna height and/or beam tilt. They would be like street lamps: covering a limited area, but bright within that area. That way a simple UHF loop antenna could pick up the signal within the coverage area, with little interference outside. I'm trying to make it easy for cable/satellite viewers to add antennas for hyperlocal programming, while keeping their current cable or satellite service for general programming.
I'm still wondering about a couple of things. First, how much does it cost to run an LPTV station? Some churches are doing so, but are they all huge megachurches or are some more average-sized? (Trying to get a handle on how many viewers an LPTV needs to reach.)
Second, a technical question: how many cable/satellite viewers still tune their TV to channel 3, as opposed to using HDMI, component or composite A/V, S-video, or the like? (Trying to get a handle on how many cable/satellite viewers have an available RF port to hook a cheap antenna to.)