I am looking to connect my new TV to my Stereo system. The stereo is from the 80’s and has an RCA L/R input. The TV uses HMDI or optical for audio out. I know I need a converter box to interface them, but I was wondering if there were any recommendations. I want to avoid anything cheap. the ultimate goal is to have 5.1 surround sound working through the box as well. Any recommendations would be most welcome!