Here's what's going on in Nashville with their 3.0 launch....and how the now 3.0 frequencies moved their feeds to the existing 1.0 stations.
WNAB's CW feed is now on WKRN's frequency, still maintaining their 58.1 PSIP ID. All of the existing WKRN sub-channels are still there. WNAB is still operated by Sinclair and owned by a third wheel as before.
The remaining WNAB subchannels are now on WTVF's frequency keeping the same PSIPs.
WUXP's channels are now on WZTV's frequency, including all of their subchannels.
The former frequencies of WUXP and WNAB are now the ATSC 3.0 signals. I'll be curious to see how these are used, and how the picture quality of the existing stations is now that they have shoehorned in the other feeds. The WUXP and WNAB feeds are 720p, along with the host feeds of their primary stations, WKRN and WZTV. Only WTVF is still in 1080i, and the rest of the feeds are in 480i.
And in Pittsburgh...
WPNT's former frequency is now the 3.0 station. Their main feed is now on WPGH's frequency, and the other WPNT sub-feeds are on WTAE's frequency.
I'd be curious to see how the stations plan on using their 3.0 feeds. How much more content can they offer between the 2 in Nashville (from 5) and the 1 (from 3) in Pittsburgh.