See also:

Touch Screen Buttons
Touch screen buttons are on the screen and highlighted when a feature is available. Some screen buttons highlight when active and gray out when inactive. ...

Cleaning the Video Screen
Pour some isopropyl or rubbing alcohol on a clean cloth and gently wipe the video screen. Do not spray directly onto the screen and do not press too hard or too long on the video screen. ...

Using Universal Home Remote
Press and hold the appropriate button for at least half of a second. The indicator light will come on while the signal is being transmitted. ...