Hi there,
I am moving into a recently built home in a few weeks and saw that all the home internet and TV is sourced in a box in the garage. I was hoping someone might be able to explain how the system works, one of the cables plugged into the 'Digital4' says SkyHD on it so does this mean you don't need a Sky box upstairs? I've never seen a system like this!

https://cdn.geekzone.co.nz/imagessubs/eac54fa0097289acdbb378d95014e5de.jpg