Very interested in this product

But a few Questions:

# What type of Aerial can I use? As in do i need UHF/HD or SkyDish be fine?

# How many Devices can be watching at the same time ( Same Channel )

# What type of Network is suitable ( Currently have 100/1000 Switch )

Is there only one supplier in New Zealand http://nicegear.co.nz/dvb-cards/silicondust-hdhomerun/