We’ve gotten a couple of people who have e-mailed us over the past couple of months where they tell us that in any of our apps, none of the videos will play.
The solution for this problem is simple. When the iPod touch, iPad (and iPhones on some carriers) go completely dead, they lose the date and time settings. The YouTube authorization algorithm requires that the date and time are set properly, because the device receives authorization for a given timeframe to play a video.
If the date and time settings are wrong, when YouTube sends back an authorization timeframe, it will always be wrong versus your device, so the videos will not play.
You would also notice that when your date and time are incorrectly set, you cannot download from the app store. For these reasons, it is always important to make sure to reset your time settings if you ever allow the iPod or iPhone to go completely dead.
Happy YouTubing!