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

connecting RCA home theater system to roku tv

i am trying to connect my rca home theater system to my roku tv for surround sound. i have connected through hdmi plugging in through arc (hdmi 1) and enabled cec for it but still nothing. only can get speakers to work with tv when putting in a dvd to play

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