Have you noticed youtube is missing from your apple tv 2? well this is due to a recent youtube update and old devices are not included in the update so youtube is gone. There is hope if you JB your atv2 you can still use the youtube app included in XBMC/Kodi however this app is not as good as the original we are all use to on the Apple TV home screen.
There might be away to spoof the apple tv into thinking its a newer version like the apple tv 3 lets hope so. Ill post up any news on this.