Please help I unplugged my TV to put into a new TV unit and now cannot get my TiVo box to work in 5.1 surround sound. It worked fine previously but I obviously have something connected the wrong way around. I have as follows TV 2 TiVo via hdmi , TV to PS4 via hdmi. TV to lg home cinema system via hdmi and an optical cable. I thought I was correct using the optical TV to home cinema. I have tried numerous combinations now and am very frustrated. Rather than put my foot through something I thought I'd reach out for help!