Another response from UKTV:
Dear Viewer,
Thank you for your email.
It’s not possible to use the app with Apple TV at present but it’s one of a number of features that we are currently looking into.
[doublepost=1513001003][/doublepost]Literally just got a reply from All4 also.
"Thank you for your email regarding All 4.
We appreciate you taking the time to contact us with your enquiry, as you have observed, we are not currently on this type of device, and I'm afraid that we do not disclose our plans for launching All 4 on new platforms to the public in advance.
Therefore, I am afraid that we can't tell you if or when we would have an Apple TV app, but can assure you that we are constantly reviewing our options regarding which devices to be on and aim to provide the best possible experience for viewers using our apps.
Thank you for taking the time to contact All 4."
Let's just keep the pressure up guys!