Connect an older Bose surround sound system (no HDMI) to a new Sony TV?

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Oct 20, 2014
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I have an older Bose surround sound system. I have it connected to a new (2012) Sony tv via an Optical reader cable, with Direct TV service. I can use the speakers but I can't get the CD/video to display a movie. It seems like the video portion isn't connected??