Question LG led tv and Roku How do I enable HDMI-CEC and ARC on my TV?

tazorba

Estimable
Mar 15, 2016
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I have a 28" inch LED tv model # 28LJ400B-PU along with a Roku - Express HD Streaming Media Player model# 3930R. How do I enable HDMI-CEC and ARC on my TV? It feels that I tried and nothing has worked.