Hi @Anonymous User
Just checked the UKTV Play App and it seems to be working fine for me on my nowtv smart box.
Perhaps try some of these steps in this linked help guide to see if that fixes the App.
Start with step 6 first, then if that doesn't work try step1 and then lastly try step 2.
Response from UKTV:
We are aware of this issue on the NOW TV Boxes and are sorry for the inconvenience, our app developers are working on a fix for this issue.
Well, at least it’s not my fault.