I agree with PG about the functions that can only be accessed by remote control. My DVD player only has "Play", "Eject", and "Pause" buttons on its control panel. All other functions are by remote control only.

And why do they include remote controls with cheapo room air conditioners? Does anyone actually use them? I've thrown several away. It would take longer to find the remote than to walk the few steps to the A/C and turn it on.