1. tvOS 13 developer beta runs surprisingly good on my TV 4K (HBOGO,Plex,Netflix,Amazon Prime, steam link all work) 2. Tried connecting the PS4 dualshock and it works great. 3. Tried Steam link with dual shock = works great 4. Tried connecting two DualShocks to my TV and they connect 5. Two dualshocks + steamlink 2 player game (cuphead) - does not work, the game recognizes 2 players and the 2 controllers work, but it’s laggy and somehow the controls keep interfering with each other. Don’t know where the problem is but I sure hope it gets resolved. The main takeaway is that the TV 4K has become a full fledged gaming platform after 2 years and it will get better. With the addition of Xbox and PS4 controllers + steamlink support, it’s poised to take over game streaming and arcade home gaming. If the bugs (problems with 2 controllers and steamlink) get sorted out, we have a WINNER. One of my other issues is, that the dualshocks will get unpaired with PS4 after they are paired with the TV and I had to connect them by cable to the PS4 when I wanted to use them.