If you have Chromecast, you can broadcast the content of medici.tv on your TV from devices such as your tablet or smartphone.
Click on "Watch concert" (or "Watch movie" for example) to launch the video player. You should then see a Chromecast icon that permit you to broadcast this video to your TV (see image below).
You can also exit the app while video is running and freely navigate on your device without interrupting it. The video will keep playing until you have chosen another one.
Further information about Chromecast can be found here: Chromecast.