Local TVe channels did not work for a couple hours

Hello! I'm using a new Apple TV and TVe (Xfinity). This morning none of the local channels worked. There is no guide info at all for those channels until 9:00am and I cannot select them. I assume it will work after 9:00 but I'll have to test it after work. Makes for an unhappy wife when the morning news does not work. I just tried the app on my iPhone and it works perfectly. Just wondering if anyone knows why that happened and how to prevent it.