The other thing I noticed today is that both NBC 25 and CW 46 are broadcasting in 1080i now, at least on my local Charter cable system. This is standard for NBC and CW but until this fix my TiVo reported both channels as 720p on both cable and OTA. Normally 720p would be fine but their conversion process was terrible. There was a subtle flicker that made static images like the scoreboard in Notre Dame and Sunday Night Football look like they were bouncing.
This long overdue fix provided a nice image quality boost and the 5.1 audio will be appreciated for football on NBC and all the DC comics shows on CW.