Anyone else having problems picking up WTBS new digital channel? I live in north Georgia and my brother lives in Roswell area but neither one of use can get WTBS. I can pick up all the other local digital stations. Already have a rooftop antenna with Channel Master preamp and rotor. Using Toshiba DST3000 STB. I am only getting a signal strength of around 15 for channel 20. Have also tried to manually tune in 17.1 and 20 but no luck. Any ideas?