To set up Chromecast with your Android mobile device, please follow the steps below:
1. Make sure your Chromecast is connected to the TV and that your phone is connected to the same Internet network as your Chromecast.
2. Once your Chromecast is set up, launch your Tubi app.
3. Tap on the Chromecast icon on the top right-hand side of the Tubi app.
4. Select the Chromecast device you want to connect to.
You'll now be connected to Chromecast and a Tubi splash screen on your TV. To play a video, select the title you want to watch and it will start playing on your TV!
To stop casting, tap on the Chromecast icon again and select "Stop casting".