I have a 2013 Magnavox television (Model 46ME313V/F7) and would like to connect a Sonos Playbar to it. We moved into a new home w/ 2 of these Playbars months ago and have only used them for streaming music so far. On the side of the tv are ports for HDMI, USB, and headphones, and this is a photo of the back of the tv. I assume that I would need to somehow connect the Playbar to the Digital Audio Output. Can someone tell me how to work this out? What cables/ adapters I will need? Thanks!