Thanks for taking the time to join us on the forums, and for letting us know about the issues with the programmes on Channel 4 and Sky that you have experienced with us recently.
I am sorry to hear that your services had been affected in this way
We are aware of a known issue with the 319 error code that we are working to correct. The current work around with this is to try to access these On Demand events at a later time on the same day or the day after. Have you tried since this post to access this with us?
Keep us updated and thanks again for raising this with us.