Ch9 hasn't improved since WFAA moved back to CH8. In Denison it must be unwatchable. I get several digitizations in a half hour program but most of the time it is watchable. Their broadcast was better before they moved to CH9.
Update: We now have a 40 ft. tower, Channel Master CM 7777 Titan Antenna Preamplifier and Channel Master CM 9521A Antenna Rotator. We used Belden 1829AC Single RG-6 Coax Cable and still can't get anything but KXII and Kten.