Ed Pawlowski wrote:

"Peter" wrote

Unless you are pulling our legs, how common is it for an entertainment
receiver to use an RF based remote? I thought they were all IR.

Both are IR

Not that this sheds any light on it, but a few yr ago I had a similar
problem. I bought an electric space heater with a remote, for my
computer room/den. Turns out that the remote from my Motorola DVR would
also trigger the heater! The heater would respond randomly to various
buttons, and then once it started doing that, would randomly change
settings even if a button hadn't been pushed. Weird thing was that if I
power failed the heater and then didn't use its own remote, it wouldn't
react to the Moto one, but if I once used its own remote to fire it up,
it would start reacting to the Moto.

Never could figure it out, and either could the heater company. I
finally just quit using its own remote, and just turned it off and on
manually, and it never misbehaved again.