The work around is to talk to Ooyala support and have them boost the expiration time for the feed to something like a year. They will do this for you, assuming you are the owner on the account, if not, contact the account owner. Also, if you can figure out the Ooyala API authentication process (SHA256 signatures, let me know if you do!) you can deal with it on the Roku side, but you will have to keep refreshing the feeds every 10 minutes....
- Joel
Screenshades: The first Screensaver for Roku2!
Musiclouds: The best free internet music, on your Roku!
Ouroborialis: Psychedelic Screensaver for Roku!