A:Answer It will all depend on whether your TV allows audio output, whether using HDMI or else a 3.5mm audio cable, like normal headphones. If your TV doesn't have audio out, then you have to make use of an HDMI splitter like the one I got "SGEYR HDMI 2.0 Switch 4 Port, HDMI Switch 4 in 1 Out, Metal HDMI Switcher 4K@60Hz". In this scenario, you will plug a second HDMI cable to the Blu Ray player and the splitter. You will then connect the second Cable Box HDMI you use for sound, to the splitter as well. You will need to purchase an additional HDMI cable, to connect the Splitter to the soundBar. You then have to use the splitter's remote (or a button on the thing) to switch which device gets to send sound to the soundbar. Still way cheaper than buying a separate soundbar if you have a nice one!
**anyway, if you go down the splitter route, hold the power button down for a good 10 seconds after you give it power and see the lights come on. Otherwise the splitter has a mind of its own, and will keep jumping between inputs**