3 things you'll need to cast video in your waiting room - Health Eggs

A Screen – whether this is a monitor or a TV, the only requirement will be a USB and a HDMI port in the back.
An internet connection – videos will be streamed straight from the internet, if you have connectivity issues you’re video playback will be affected
Google Chromecast – this will be used to enable the “cast vide” option within Chrome so that you can cast your browser to the screen. It’s a small device around $80 that plugs into the back of your TV HDMI and USB ports. You’ll need Google Home to set it up and connect it to the same network as your computer.

3 things you’ll need to cast video in your waiting room