Guide LIsting Different

I looked on my IPAD the other day at the guide listing. Saw a program I wanted to watch later in the day. When the time came I went to my Apple TV and couldn't find it. Looked at my IPAD again and it was still listed. The Apple TV showed something else on that channel at that time. It turned out the IPAD was correct tho.

Why is the guide listing not the same? Isn't it coming from the server?