Originally Posted by wiscaudi
Sounds like you're having more issues than trying to up your backlight timeout limit.
I too watch movies on my BB 8820 and the backlight never turns off. I've watched everything from a full length movie to 40 minute TV series episodes. Backlight has never turned off on me.
I don't believe there's any way to make the backlight stay on through the OS. I assume there's something built into the media player that keeps the backlight on while viewing video.
I'd first try a batter pull while powered on. When it boots back up, try a video to see if your backlight is still shutting down.
I'd be extremely annoyed if I had to keep pressing buttons on the BB to keep the backlight turned on during a movie!
Tried pulling the battery, but I still have the same problem. Thanks for the reply anyway.