Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I believe you can connect it with FireWire if you get an fw400 to 800 adapter cable. The you need the FireWire SDK to view or record the mpeg transport stream.

It will only give you unencrypted channels.
 
You might be able to do HDMI->DVI->Converter->MiniDisplayPort. However, HDCP may or may not be an issue, and it is a tad pricey. There are other options for the converter, but they do exist.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.