Apple TV channels not updating

I subscribe to both HBO and Showtime through Apple TV, because I like the idea of having all my channels consolidated in one place. However on occasion some of the shows I watch don’t update with new episodes available to watch through the TV app. They appear in my feed but if I try to watch them the only option I’m given is to open them in the dedicated App which would mean downloading that app but not being able to watch them due to my subscription being through Apple and not the select provider. Kinda nullifies the whole concept.

I’m not sure if its an Apple problem with the TV app not updating or if its a provider issue with them not pushing the episodes through to the TV subscribers as well as the platform app subscribers but its super annoying. The biggest annoyance is that I’m paying for content that I can’t watch so something needs to give or I’m just going to have to ditch the TV app model and revert to the provider applications instead.