Ahhh, thanks for bursting my bubble - (kidding). This is the info I have been looking for. Seeing all the news about 3.0 in PDX led me down this path. Guess I'll have to be satified with streaming options to get my UHD fix.The ATSC 3.0 stations are not sending out 4K, it's just 1080p, 1080i or 720p simulcasts on shared "lighthouse" stations, leaving no room for 4K.
There won't be enough bandwidth for 4K OTA from the networks until after the 5 year ATSC 1.0 simulcast period is over, and 3.0 tuner penetration is high enough that those shared stations can drop ATSC 1.0 entirely and switch to standalone ATSC 3.0 signals without losing a significant portion of their OTA viewing audience. And since as of now only large size TVs come with ATSC 3.0 tuners and there's no plans to distribute coupons for free converters or a mandate that all TVs come with NextGen tuners, it's going to be a while before that happens.