Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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Level 7

green or black screen flash - solved

I recently bought a Roku Ultra, and have an older HD TV, Hitachi 42 inch model LE42S605, together with a Samsung blu-ray home theater model HT-E5400.  I originally had the Roku as input into the home theater, with output from the home theater to the TV.  I kept getting green or black screen flashes every 3 to 5 minutes, and the TV would act as if the signal was lost and show "Detecting" on the screen for a few seconds and then the screen comes back.  Audio was always there, never stopped.  This happened whether or not I was streaming - even on the Roku home screen.  After researching my TV and home theater, I realized I could wire it up using Audio Return Channel (ARC) and connected the Roku direct to the TV, then TV to home theater thru ARC.  No problems ever since.  Thought I would share the solution in case others have experienced similar and this might work for them.

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