YouTube app holds a long wakelock. What app settings can I change to keep it from doing this? I am using an HTC Evo 4g with Android 2.3.5 Gingerbread. I'm trying to deal with apps which keep my phone from entering sleep mode, and the YouTube app is a major offender. With downloaded apps, usually the fix is to remove the app and find an alternative app that doesn't suck the battery dry. But I want to keep YouTube enabled so I can watch YouTube videos.

What settings for the YouTube app can I change to get it to not hold a wake lock for hours on end? Are there any device settings that I can change to help?

So far I have disabled "Preload subscriptions", "Preload watch later", "Improve YouTube", and "Notifications" in the YouTube app's settings, but the wake lock still occurs.
You can use Wakelock Detector in combination with Greenify to block wakelocks and save a lot of battery.

Update: Since Gingerbread is not supported by Greenify, you can use Wakelock Terminator to stop the wakelocks if you have root.