On the home screen, on the top menu, click the end option that looks like 3 squares and a plus.
Click the Downloader app.
In the text box type in 9310668 and press Go. This should start the dowload of the new app.
Wait a few seconds and it should start dowloading automatically.
When asked if you want to install the app, click Install on the bottom right.
When the app is installed, click Open on the bottom right.
When the app app starts click TV, it should be the option already selected. When it shows a big tick. Click again to go to the login screen.
Log in using the details in the text message. The username and password are case sensitive. Make sure to tick Remeber Login so you only have to do this once.