I live in the Vegas area and receive ~50 OTA channels. Have a 2007 model LCD Samsung TV LNT5271FX/XAA along with two other flat screen TVs. The two other TVs receive the channels 26.1, 26.2, 26.3, 26.4, 26.5, 26.6, 26.7, and 26.9; however, the Samsung TV does not receive those channels .....or...