A buddy of mine worked in a theatre and told me that the film’s were all 1080P. I called bullshit. Those screens were huge they were clearly 4K. He showed me the reel and yup he was right.
If theatres don’t even bother with 4K, your TV doesn’t need 8K.
Actually I don’t think it is. They’d have a license to use it in perpetuity but if they claimed legal ownership then they’d be responsible for what you post.
They get the benefits of ownership without any of the responsibility.