Back in the USSR there were only two TV channels. Then a third was added and it was a big deal.
So there was this joke where a guy turns on the TV and sees Brezhnev delivering one of those endless Soviet speeches. He switches the channel and sees Brezhnev again. He switches to the third channel, and Brezhnev sticks a finger in his face, saying, “Yeah, keep switching channels if you want to get into real trouble.”