NONE! the only thing that has been floated as a possible mandate is that the broadcasters continue broadcsting programming on the atsc 1.0 in order for legacy equipment to still be useful. however, there was never any inclusion or proposed promise that the content broadcast at ATSC 1.0 would be the same (presumably most desired new episodes of current hit shows) programming content on the ATSC 3.0. In other words look for the main broadcast channel with all the new current hit content only available on ATSC 3.0 while all those channels showing reruns of all the shows or religious programming or foreign programming staying at ATSC 1.0. Broadcasters just aren't going to invest in atsc 3.0 unless they drag you along with it. Essentially our current FCC is pretty much letting the broadcasters do whatever they want and come up with their own plan and "promises" for the transition to ATSC 3.0 and maintenance of ATSC 1.0. that could change if someone else wins the next presidential election.
I hope understood your question. I will add that there may not be any Mandate of any tuners on televisions or other devices because atsc 3.0 will be IP and that means headless tuners are quite likely and those headless tuners will send the broadcasting packets throughout your home network to televisions, possibly DVRs, and, of course, to your tablets and phones. further, the broadcasters have been talking up being able to have mobile devices in remote locations like your smartphone being able to tune and display the broadcast signal. In other words, watching live over the air TV on your smartphone because atsc 3.0 is IP. it would be like any other stream as if it were coming through your wireless network, but instead it is the ATSC 3.0 broadcast signal carrying the stream picked up by your phone or tablet to watch free OTA broadcast TV.
There have been no true promises, but the broadcasters and their promoters talk as if they are promising everything by using phrases such as "What we can do . . ." as opposed to "what we might . . ." or "What we could do . . ." To some people, such language implies and certainly sounds like a "promise" or a "definitely will do" feature. In other words, the broadcasters are still selling atsc 3.0 to the public amd the FCC.
What is interesting is that the four major networks are not excited, nor looking forward to about atsc 3.0( they're owned by Studios and major media companies who already have their fingers deep into the IP pie). Instead it is the vast majority of independent stations (many owned by very large companies) who make up most of the NAB and its missions and objectives, and NAB has a massive love affair for ATSC 3.0. one of the reasons is this a potential for targeted advertising and other possible streams of new Revenue that likely include selling some of your viewing habits. remember your atsc 3.0 is connected to your home network and of course the internet. they're probably not even talkin about all sorts of other Revenue they can get from this. Oh yeah, and it's supposed to be UHD to sell it to the masses.
