To use Home Theatre Control, you need an applicable TV, applicable Audio System and internet connection.
When you connect your internet-enabled BRAVIA TV to the internet, the Home Theatre Control application will be automatically downloaded. Make sure that your Home Theatre system is connected to your TV via an HDMI cable. You will then be able to find the Home Theatre Control icon under "Network” or "Applications", depending on the model of your TV.
Please do not forget to set “Control for HDMI” setting ON on both the TV and Home Theatre System.