does the tv have multiple inputs and if so, do you have anything else plugged in that you switch back and forth between?
i tried plugging my xd/s in via HDMI and switching it back and forth [manually] between my roku and my pc for the internet content i can't get on the roku. the tv couldn't handle the change and the settings on the tv had to be manually reset each time. eventually i just plugged the roku in via component and the pc in via HDMI and left it alone because i was sick of the tv not being able to identify the roku when i changed what was plugged in.
N1000, roku1 XD/s, roku2 xs, roku3
speed range from ~18-20mbps
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