HDTV's are great because you have access to Freeview HD however if a channel that you want to access is not available on your platform (HD or Satellite) then you can still view the channel via the live stream on your computer. 

But you can connect the laptop to your TV so you can get a better view! 

The Link provided by Telecom shows you how to watch your channels and on-demand content to your big TV!

This soon will be Helpful for Sommet Sports viewers who will soon be able to access the channel via the website! 

http://www.telecom.co.nz/techinasec/laptopontv/