I am new on this forum.
I have a problem with some digital channels on my TV. My cable provider started with DVB-C emitting, I found all the channels and then experience the following problem with some of them. Namely, after few seconds, up to one minute, the channel that I am watching switches to another one (always the same). That happens with 3-4 channels that are on the same frequency.
I also tried to rearrange channel list. I moved the channel (to which other channels are switched to) to another location, the problem persists. After a while, that channel went back to previous position by itself.

I don't know what might be a problem.

I sent a mail to Philips support few days ago, but still no answer.