This has been answered before, but i lost the page. One of my rcvrs has lost 119 and 61.5 and is constantly looking. i have tried check switch and it only finds 110. i have tried a hard reset, no change, i tried unplugging the rcvr (811) for 30 minutes no change. A member told me about 5 or 6 months ago, about unplugging satellite feed and running check switch, when i do that it shows nothing on 4 feeds (expected). when i shut down and hook back up, it only finds 110 and check switch does not change the symptom. my other 811 is working fine. any suggestions.