When I turn on my Apple TV, Channels is set up to start on a specific channel (BBC1) which it does. But there is no EPG data, so if you hit the "up" button it brings up a timeline with no program data in it. Also the dropdown Quick Guide menu is also missing all EPG data, so just shows the channels names, not what is currently showing.
If I then go into Guide all the data is there and once I select a program from there both the timeline and dropdown menus are populated with the data.
Is this an Apple TV issue? I've never had this happen on my Shields with the same settings
EDIT This seems to depend on how long the Apple TV has been switched off. Both times it has happened, it was the first time in the day it was turned on. If I then turn it off and on again within a short space of time (30 mins for last test) the EPG data shows up OK.