TV MusicBox is a free music sharing application designed exclusively for Sony Android TVs. With this app, users can enjoy music collaboratively on TV from multiple smartphone devices. The app allows users to create and share a collaborative music playlist on BRAVIA with multiple users. Users can play and control the playlist on BRAVIA via smartphones connected over the same Wi-Fi network or TV Wi-Fi Direct. Additionally, playlists can be saved on BRAVIA for easy accessibility and playability for the shared songs.

To use TV MusicBox, users need to install the application on their smartphones and follow the instructions thereafter. However, it is important to note that the companion mobile side app 'TV MusicBox - Mobile' is required to create playlists. It is recommended to have up to 5 concurrent users. Select Android smartphones are compatible with the app.

Overall, TV MusicBox is a useful music sharing app that allows users to enjoy their favorite music on Sony Android TVs collaboratively.