Local channels stopped working on one receiver but not on others
I have four receivers, three regular and one HD. The local channels worked on all of the receivers at first but stopped working on the HD receiver the next day. The local channels still work on the other three receivers. The HD receiver was originally connected to the TV with an S-video cable and RCA audio cables. I swapped to Component video cables and an optic audio cable so I could view HD channels and have surround sound. The local channels stopped working even before I swapped cables. I tried unplugging the receiver like I read in another forum but it didn't help. What do I need to do now?