I've been using the DIRECTV2PC program... and I like it!
I think this is really going to compete with SlingBoxes not Hulu or Joost.
For example, my desktop PC is in one area of my house that I really don't want to have to buy another TV AND another DVR box for... so now I just pop open the DIRECTV2PC program while I'm "working" in my office (more like distracting myself... heh).
Only thing is I wish this worked on a Mac, and I wish it worked over the internet... not just the local network. If DirecTV does that... I'd save cash not buying a SlingBox.
On the competing with Hulu front... the DirecTV DVRs already play Hulu videos... and CBS Online, ESPN Online... even NetFlix!
Just download PlayOn from MediaMaill Tech... (»www.themediamall.com/playon) install it and BOOM... Hulu on your DirecTV box.