How To Covert Digital Audio Out To Analog - RCA or 3.5mm AUX (Samsung TV) - YouTube
How to: Hook Up Your Soundbar With An Optical Cable - YouTube
Mini-TOSLINK optical audio cable with signal protection – 10m (Mini-TOSLINK to TOSLINK, digital S/PDIF cable/fibre optic cable for soundbars, stereo systems/amps, Hi-Fi) by CableDirect: Amazon.co.uk: Electronics & Photo