In that first link, it's very clear what HDTV you can record with their stuff: free, over the air transmission, even if it's coming over your cable. I guarantee that ESPN is not unencrypted, and neither is anything but those stations that are available free over the air.

Got anything to go with those product links describing how to record (and decrypt) encrypted HDTV or get a full def unencrypted signal out of firewire?

I am the Doctor, and THIS... is my SPOON!