Audio issue with NBC Sunday Night Football

During NBC Sunday Night Football, the announcer dialogue is overwhelmed by the stadium crowd on all three of my Xfinity TVs. Commercials on the same channel sound completely normal, and the same SNF game through Xfinity Stream on my PC has clear announcers. Other NFL broadcasts are normal. Changing the Xfinity box between Stereo, Auto Detect and Expert Mode does not correct it. Please have Engineering check the SNF linear-TV audio feed and channel mapping. Can this issue be resolved?

David Hoover