So the Nvidia Shield TV Pro supports everything, 4K, Dolby Atmos and Dolby Vision included. But it doesn't play it via another device but directly, don't know if that answers the question 100%, but DTS is of course no longer an issue with streaming services like Disney Plus or Netfix, because they deliver the best films in Dolby Atmos format. If DTS is available, the Nvidia Shield would certainly also process it. TVs usually have Dolby Digital Plus, which is also better than pure DTS.