Instructions apply to Windows 10.

SelectMore tools>Cast media to unit.

grab the target gadget in the pop-up window to begin casting.

Edge with the More Tools heading and Cast Media to Device command highlighted

To stop transmitting audio and video to a rig, select theCast media to devicemenu option again.

What Devices Support Screen Casting From Microsoft Edge?

It’s possible to cast fromMicrosoft Edgeto yourRoku TVor other devices on yourwireless data pipe.

Edge with the available devices for media casting highlighted

You cannot cast protected media such as audio and video fromNetflix.