Anyone can share their screen to a BenQ TV using Google Chrome, with no extra software needed. However you cannot use your TV to remotely control your computer this way.
To get started, click on the three dots in the top right of Chrome, and choose Cast..., and then choose your device name you wish to connect to.
You can cast a single Chrome tab, your entire desktop screen, or a single file. By default, whatever Chrome tab you have open will be shared. You can change what you would like to cast by clicking the Sources button at the bottom of the screen where your device is chosen.