I recently upgraded to a phone with Sprint TV capability (Hero) and have noticed that the audio and video do not stay in sync on live channels. They start off synced at launch, but within a minute are noticably off. After 3-4 minutes, it basically becomes unwatchable. My son has the same issue on his Instinct and I've seen some EVO owners complaining about the same thing. Is this a common Sprint TV issue? Or is it possibly on the device end?