If you’re using your MacBook or a PC computer, open Google Chrome and go to the Chromecast setup page, there you will be asked to either download the Chromecast app or to add a special browser extension to Chrome. If you’re going to use an iOS device to set it up, go ahead and download the Chromecast app to your iOS device. Once the device is connected to your TV, it should boot up and you should see a Google Chrome logo. To set up Chromecast you first need to plug it in to the HDMI port of your TV and also connect it to the USB port of your TV or use a micro USB to USB adapter to plug it in. You can also use Chromecast with any PC and any Android-based device with an Android version 2.3 or newer. Google’s Chromecast allows you to effortlessly connect your MacBook or any other iOS device that has iOS version 6 or later installed on it to your TV to stream movies and videos, play games and browse the internet.