"The only way it could work is if the content delivery company encrypts a video feed to a secure monitor and that is not going to happen."
Have you tried looking up HDCP 2.0? The requirements for 4K BluRay players? Both require end-to-end encryption (from player to monitor), and PCs are completely locked out of this loop (exactly BECAUSE users have control of them). Plus, last I checked, trying to capture a raw 4Kx2K screen in realtime involves a pretty intense amount of bandwidth.
Biting the hand that feeds IT
