Results from this weekend:
Watched the game on Fox for the last quarter and the picture was perfect with only the very occasional artifact popping up.
Then watched the second game (KC-Pitt) on CBS and it immediately exhibited the same issues as before where the motion blur made it unwatchable. This is the same channel as the Thursday night game so it makes some sense. Beyond the blur there is a significant amount of artifacts. Again, did a channel scan to check the strength and had 5 green lights indicating a strong signal on the channel. The OG Tablo was then tried with the Beta app for Android TV and it worked with no problem While I was watching on the 4-tuner, I tried recording on the Engine. Once was the game was over I pulled up the recording and watched around 30 minutes of the recording. It looked much better and was watchable but did have some motion blur at times but nowhere near what it exhibited watching Live.
Currently am watching the Sunday night game on NBC and there has been no artifacts and an excellent picture.
My only thoughts now are wondering if the tuner is getting overloaded? I'm skeptical that this is the case as I'm further away from this antenna than most of the other channels by ~ 10 to 15 miles. Thoughts again for next steps?