How Do I Add Another Freesat Box in the House?

[Maxeh]

Hi
I have a Minidish outside with Freesat with 1 box downstairs and I would love to have Freesat (for the time being) in my room upstairs aswell.
Do I just need another Sky Box + viewing card?
Is there an easy way of doing this or do I need to call out Sky?

Thanks!