just had direct tv installed about 3 weeks ago, got a new hdtv samsung, flat screen on the wall and i not getting local channels i have the off air antenna the system was all professionally installled by firedog ,, but i had to go to work that day before he got done installling and told the wife things and she don' remember everthing , the antenna i have is a phillips firedog guy said this one would work , and the only problem is i get nbc (kfdx) cbs (kauz) but i am not getting abc and fox can something tell me what i am doing wrong here ??