Each channel has a SID (Service Identification) in the transponder table to digitally identify the service to the receiver and it is the same on all three of these transponders (SID: 1). Typically, this is not a problem when transponders are separated by adequate bandwidth and the receiver doesn't see multiple and identical service ID data.
I don't have a problem purchasing another receiver, but so far, I haven't seen evidence of any receiver not having these same kinds of problems. I've lost Decades, H&I and Movies and can only get an occasional burst of data sufficient to cause a frozen picture now and then. Oddly enough, when I rescanned, I gained two HD channels of MeTV that stays locked most of the time even though the signal quality is only 54%. The SD channels have more signal, but they don't stay locked as well at the HD channels.
The SD channels are carrying a signal quality of 68-70%, but they are not reliable. It puzzling how some channels, even HD channels on other satellites carry about the same signal quality, but are rock solid regarding stability. I found a plethora of network channels that are HD and stable as a rock, while others on the same satellite have an occasional glitch. If there's a more reliable receiver out there, please let me know what it is. I really like H&I, Movies and decades, even though H&I dug around in some garbage bin and found Hill Street Blues and several of the other NY cop shows I hated when they were new.
Hopefully there's a solution to this nagging problem.