Hi @markcameron,
Warm greetings from the Roku Community, and thanks for the inquiry!
Please be advised that the features, such as the What to Watch and Watch Later setting on the Roku device, are for UK terrestrial channels and the Roku channel contents only. If, in any case, you want to enjoy the mentioned features for the other channels, such as Netflix and Prime, you may visit the channel app directly.
We appreciate your input, and thanks for your feedback. We always aim to provide our customers with the best streaming experience and convenience when using our services.
If you need anything else, please let us know.
Best regards,
John
John
Roku Community Moderator