When in Antenna mode (DTV from the Aerial) some channels do not tune in. typically I can get the lower channels from 2.1 to 20.2 but between 11.1 to 23.2 the signal strength is below 50%. Yet the signals from Channels 30.1 tp 66.2 come in clear. You probably think its the antenna signal and or TV Station signal. Well I have a cheaper DTV that has no problem pulling in these stations and the signal level is showing higher than the Sony TV? Any Ideas... I think there must me a fine tuning adjustment or AGC is not working?