Put the game on the TV
- A laptop with an HDMI cable is the most reliable: open the TV link from your host screen and make the browser full screen.
- A smart TV with a web browser works too: type the TV link into the TV's browser.
- Casting a Chrome tab or mirroring with AirPlay works, with a second or two of delay. Use the phone you host from for something else, not the one you're mirroring.
- The TV link has no host controls on it, so it's safe on a screen everyone can see.