Did you ever get it working? The few people that have tried said they get blank video via HDM from PC's.
What if we just add a HDCP complient HDMI splitter?
We would feed output #1 to the TV and output #2 to the SlingBox.
Would this possibly work and get around the no video problem?
I really would like my Windows 8 Media Center to be on a HDMI slingbox! (I can't use component, no way)
I'm tempted to just buy it, try it, and return it all if it doesn't work. I'd rather ask first though.