Is this for the system you have described in your AC profile, the one with the Mac Mini? The audio input on the 2010 Mac Mini is a dual analog/digital connection. You could run an optical cable from your TV to your Mac Mini, and from there the rest of your system stays the same.
If you find the audio routing on the Mac Mini to be inconvenient, I recommend buying the Rogue Amoeba "Loopback" application to make it (much) simpler. Makes audio routing very simple, even between apps.
(I have the optical out of my Oppo BDP-105 connected to the optical input of my 2012 Mac Mini, which connects to my DAC via USB. My TV and Apple TV are connected to the Oppo via HDMI. This way, whether I want to play a DVD/BD, stream Netflix (or whatever) from the Apple TV, or watch broadcast TV, I can use my audio system for the sound. My stereo playback, I stick with Roon, but for everything else, I rely on Loopback for the routing, including even Youtube videos on the Mini.)
Good luck!