A warm welcome here in the Roku Community, @RogueSTProMan!
It is highly appreciated that you've reached out to us for support and we sincerely apologize for any inconvenience this may have caused. No worries! We're here to further assist you with this.
If you are unable to stream the Paramount Plus on your Roku TV in 4K resolution, kindly try to manually modify it by navigating to your Settings > Display Type > Choose one of the available display types.
For reference and further details regarding in setting up the Display type on your Roku TV, kindly visit our Support page.
Let us know how it goes and we'll continue assisting you from there. Hope this helps!
Best regards,
Carly
Carly Y.
Roku Community Moderator
