Hi @Doughty_2018,
Welcome back to our Community Forums! Thank you for your post and I'm very sorry to hear that you're having some ongoing issues with your TV box and that your 360 migration does not seem to be complete. I'll be happy to look into this further for you.
Can you tell me what error you see when you try to view On Demand shows?
I was able to look into this further on our systems and I can see that you've been in touch with us recently and have a technician appointment arranged. Please keep us updated on how you get on and if you need any further help with this issue going forward. We're happy to assist.
Thank you.