To use that you need an Optical to analog converter.
I recently purchased a 75" LG TV (Model 75UJ657A). I have attempted to connect my Sennheiser (Model TR 165) headphones used with my previous Sony TV without issue. The connector from the headphones' base are red/white male plugs that presumably connect to the audio out holes in the back of the TV. I have tried different audio out settings in the TV and have no audio through the headphones. Perhaps I am in the wrong area of the TV selections or am not pressing the right selections, as I readily admit to being an electronics neophyte. Any thoughts?

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