Watched some of the Friday coverage here; it was available on both a local CBS affil and UHD, both delivered by TWC-SC. PQ on both was excellent, audio was somewhat different.
WIS (Columbia) used their analog SD channel for normal network and syndicated afternoon programming but ran the Masters on the -DT side. This was a nice treat as they had "better" audio than UHD, for some reason. Both audios were decoded as "Dolby Digital" by our Denon, but the WIS-DT feed seemed to have more separation and definition. It was especially apparent during announcer lulls when the background natural sounds-birds, wind, crowd noise, etc- were very noticable. The UHD audio by comparison sounded almost "monophonic". And yes I know the CBS affils use a different DialNorm setting, but I don't think that was the difference.
Also noted that on the WIS-DT version, most of the commercials were HD and filled the 16:9 space while on UHD all the HD spots were letter/pillarboxed so there was black all around. Since the feeds otherwisw were identical and originated from the same place I can't figure out why the commercials were different, unless there were 2 separate commercial integration paths for the 2 different end users.
So once the program leaves the truck in Augusta, how is it integrated and distributed to both CBS affils and to UHD?