You can follow the three easy steps to start mirroring your Mac, MacBook, and MacBook Pro to Grundig Smart TVs wirelessly (WITHOUT Apple TV)
We support Grundig Smart TVs from 2014 and newer, as well as Android and Fire TV.
Click the link: http://bit.ly/mac-to-grundig or search for it in the App Store.
Open the app, click the “Learn how to play sound on TV” button to download the free audio driver and start transmitting the sound from your Mac to TV.
Please follow our guide to make sure your Mac and Grundig TV are connected to the same network. Don’t forget to click the “Enable Sound on TV” button.