Tri-Edge still coming across old systems to be paired with new hardware. Old Bose sound system requires an active ARC HDMI input converter to red-white AV-style connectors when attaching it to a new 55 inch Smart TV.
Good thing we still have people that make third-party adapters for such things! Remember when you had to have an adapter to fit your various electronics to your tube TV? Still the case here in 2018.