I was running a campaign with a 2 minute timeline, with 3 channels.
One for ads, one for live tv, and one for weather. In my ad channel I spaced the content 30 seconds apart.
So here is the issue. After 2 minutes and it starts over, the screen will go black for a brief moment. Which causes my live tv channel to cut out.
My workaround was to create a 24 hour timeline and create a .swf slideshow for my ad channel.
The only problem with this is I have to remote into the workstation everyday and manually restart the airplayer.