First, is there a dedicated remote button that does this?
Try putting something over the IR receiver on the TV. If it stops changing channels, then maybe something happens to be outputting the right signal for your TV to be acting up.
I used to have a Sony that would do random things, but only when trying to transfer files from my phone to my PDA via infrared.
I need help. Bought a Samsung 19" TV for the kitchen model LN19A450C1D. Within 30 minutes after going through Setup, the TV had changed channels by itself from HD 5.1 to 2.1. I called the retailer, HH Gregg, and then called Samsung. Neither had heard of such a problem. I returned the TV to HH Gregg and exchanged it for another TV of the same make/model.
Now the second TV is doing the same thing. I have had it now for about 5 hours, and it has changed from HD channel 5.1 to 2.1 six times.
The HD service is Comcast. I am not using the STB. The cable TV service connects directly to the television set.
The remote is not being press accidentally. In fact, the batteries were removed form the remote, and the TV still changed channels by itself.
Any chance there is a signal from Comcast that may be causing this? Any other ideas before I exchange this one for a different brand?