The TV should not be in screen mirroring mode, but just on “TV” Mode or any HDMI IN port. After launching the app, you will see the app icon appearing in the top bar of your Mac and the app will look for your TV on the network. How to use the app Mirror your Mac screen
Jun 22, 2017 How to Stream / Mirror your MacBook Air to Apple TV May 24, 2016 Mirror to Mac or Windows PC app for iPhone and iPad
If you own a Mac, MacBook or Windows PC and want to cast your iPhone or iPad screen on the monitor, AirBeamTV has the solution! Mirror your iPhone or iPad to any Mac or Windows computer screen. No wires and no additional hardware needed. The app works without the need for an Apple TV or Airplay.
No Audio when Airplay Mirroring from Mac … - Apple Community
May 24, 2016
Stream and mirror from mac to Apple TV, Chromecast Mirror the entire screen or just a specific application. In most cases, AirParrot is much faster than the native option. It doesn't distract while adjusting your display settings and mirrors your screen the way you want. Quickly connect and mirror to Apple TV, Chromecast and more. AirParrot 3 is a great addition to any Mac — old or new!