I have an HD21-200 receiver in my room and a standard NON-hd receiver in the living room. I noticed that when I tune into international channels on the NON-hd receiver in the living room, i lose the signal the signal for ESPNHD, TNTHD and some of the local channels on my HD receiver in my room (it looks like the 99c satellite is going out?). When I change the channel on the NON-hd receiver back to a channel other than an international channel, my signal comes back to my HD receiver. Any ideas to whats wrong? Possibly a bad multi-switch?