I entered channel 17 on the remote controlling one of my HR20s and it instead took me to channel 177...a PPV channel, I think. On the screen I had three choices; view now, record for later, upcoming showing. Nothing about how to back out of this screen. Hitting EXIT did nothing. After trying everything I could think of I finally enabled the other tuner and was able to select a channel there. Thankfully the PPV selection screen had disappeard. If you mistakenly land on a PPV channel, is there an easy way to "just say no"?