How do I see my pc/mac screen on my samsung series 7

[mlerrigo]

Hi

I'd like to know how I can see my imac screen as it is on my samsung series 7.

I need to connect it wireless or via ethernet. I need it solely for watching Iplayer or Itv live (watching world cup) and for seeing anything on the internet on a larger screen.

Thanks for your help.

Matt