When I change channels using channel down or up on any hotel TV I have used, if I press channel up on the highest channel it then goes to channel 1. If I press down when on channel 1 it goes to the highest channel. And I travel a lot and see lots of hotels.

I have no idea what my home TV does as I never use channel up/down as I have a Pronto.

Of course, imagine what volume up/down would be like if it worked that way!!!