I have a AV receiver with 3 hdmi imputs. One for TV,one for Roku 3, and one for Chromecast. I have my chromecast powered through wall plug so it is always on. It's been plugged in since Monday. Today when I went to use my Roku 3 I was getting a red line flicker on my tv. When I removed the Chromecast from the hdmi imput the Roku worked great. No red line. I think the Chromecast is running hot that it affects the Roku hdmi imput? So far the Chromecast was not affecting the TV imput.No red line flickering. What I did to solve the issue so far was plug the chromecast into the hdmi extender and the extender into the AV receiver. That worked to remove the red line flickering on the roku. Should the chromecast be unplugged when not in use so it does not get hot?