To help you understand the 4K Ultra High Resolution hype, we have jotted down the details of 4K video format and its real benefits for image usability.
Recent rumor is that the next version of Apple TV will not support 4K video streaming - a newer high-definition video resolution that delivers a more detailed, immersive picture. Previously there are rumors that next generation Apple TV will have support for 4K streaming.
YouTube is currently experimenting with Ultra HD 4K videos that can play at 60 FPS. The option to play at 4K is available for only 6 videos hand picked by YouTube.