You can checkout a demo of the AppleTV interface http://dafinley.github.io/FamousFun
Make sure you have Node.js installed, at least version 0.12.
Start by cloning this repository.
Then, install dependencies with:
$ npm install
Once the install has finished, start up the local dev server:
$ npm run dev -- -e famous-demos:clickable-square
Now surf to localhost:1618/.