I hooked up my Roku Ultra last weekend and the setup was easy and it worked fine. I used the Roku remote to turn off my TV (Samsung) and when I turn it on again, the TV does not get the signal from Roku on the HDMI port. It says "no Signal". The only way to get it working again is to remove the power cable from Roku Ultra and insert it back again. I have seen some posts for this but no answer/solution from Roku, If this does not work I will have to return my device.