This question would be better asked of Channel 4.
You don't say which box you have, and the app itself can vary between devices and content broadcast in some circumstances.
However, your box is only the delivery method of the app and the content and the app itself is controlled by the app owner, in this case Channel 4.
If what you are looking for is not available, then this may be a contractual issue that prevents C4 from including it on catchup, and it will not be viewable
As said, if you want to know why, it would be best to contact C4 direct.
From the 29th of March our TalkTalk Community will move to peer-to-peer support and the TalkTalk team will no longer be here to support with queries. Don’t worry we still have plenty of ways to reach out if you need to speak to TalkTalk directly. For more details check out the link here:
How to contact TalkTalk Broadband - Help & Support.
