I have a Roku Streaming Stick and a Roku Ultra. When I want to use them to stream shows I use a HDMI cable that I plug into the back of my Yamaha Receiver and then I select the correct inputs on my tv and receiver to watch. I tried to post a picture of my screen but had no luck. The Roku Home screen is distorted and unwatchable. If someone will give me directions on how to attach a photo that would help with my description of the issue and greatly appreciated. These devices work fine on other TV's (when plugged directly into the TV). When I plug another brand streaming device into the HDMI ports on the receiver it works fine. I would prefer to use the Roku for ease of use but can't figure out what is causing the issue. One thing I forgot to mention is that the Roku devices have at one time worked running through the HDMI inputs on the receiver. Any ideas would be greatly appreciated. Thanks in advance.