HDMI 2.0 and HDCP 2.2
To successfully stream 4K content, all devices connected to your compatible Roku device must support HDMI 2.0 and HDCP 2.2. This includes your TV, an AVR, and any other devices connected in between. If even one device does not support HDMI 2.0 and HDCP 2.2, then the 4K movie or TV show can only be viewed in a lower resolution, such as 720p or 1080p.
HDCP 2.2 is a copy and content protection standard required by the TV and movie industry. Some older 4K Ultra HD TVs do not support HDCP 2.2, while others may only support HDCP 2.2 on a single HDMI input. Learn what to look for when trying to identify an HDMI input that supports HDCP 2.2.
After the connections are made, power on your Roku player and complete Guided Setup using instructions from the appropriate article on the Setup page.
Where can I find 4K Ultra HD content?
Whether accessing the Roku Channel Store or the 4K Spotlight channel, learn how to find 4K Ultra HD movies and TV shows on your Roku player from various streaming channels.