I must be missing something obvious here.
I'm looking at TV projector for a home theater setup and non of them seem to have optical out. I initially thought it was because I was just looking at the cheap ones, but it seems even the higher end ones lack optical out. They usually just have analogue L/R output or a 3.5mm jack.
Why is this? Many newer TVs have optical out. How am I supposed to connect digital surround sound speakers to a projector?
For example right now I have an old wii, blue ray player, and chrome cast connected to a TV and the TV is connected via optical to the speakers. I need the optical from the TV because non of those devices support optical directly. How do I do this with a TV projector with no digital audio support?