Yes, you can display your Proclaim presentation using your Apple TV.
1. Connect your Apple TV to your WiFI network.
Both your Apple TV and your Mac running Proclaim must be connected to the same network.
2. AirPlay to your Apple TV.
The device display connected to your Apple TV must be connected and awake. On your Mac, Click the AirPlay icon in the menu bar, then choose your Apple TV under AirPlay To:
The icon turns blue when your Mac is using an AirPlay display.
Trouble Connecting? Apple provides support documentation if AirPlay or screen mirroring isn’t working on your device.
3. Choose between extended or mirroring.
From the same AirPlay menu, choose either Mirror or Use As Separate Display. View Apple's support help.
4. Go On Air.
Once you've configured your displays, open Proclaim and go On Air to start presenting. If necessary, configure your displays in Proclaim to project your presentation properly.
5. Disconnect from your Apple TV
To stop using your Apple TV as an AirPlay display, select Turn AirPlay Off in the same menu or press the Menu button on the Apple TV remote.