As long as the tv has an HDMI input port, that should be fine.
Just connect with a good HDMI cable and configure the device with a mobile phone/tablet….
With the Chromecast only picture and sound is shown/heard – all controlling happens in the sending device (apart from the volume control).
With the B&O tv you will have to assign a command/button on the Beo4 in order to turn on the tv to the right input.
MM