I found it
"Remember how I've been telling you not to buy a new Blu-ray player, to wait until new 3D Blu-ray players with HDMI 1.4 connectors become available?
Well, forget all that.
The HDMI Licensing group has solved at least the Blu-ray side of the 3D problem. All devices with HDMI 1.3 and an upgrade connection method Blu-ray Live decks (including PS3), satellite receivers and cable set-top boxes can be upgraded to output 3D.
However, as with all things, there's a catch. Keep reading to see what you'll be giving up.
Unfortunately, you'll still need a new HDMI 1.4-enabled 3D HDTV to see the 3D effect. It's necessary because those HDTVs have dual-scanning capabilities: They can display near-simultaneous frames, one for each eye, to create the 3D illusion. Current HDTVs are only single-scan.
And you won't get full 1080p 3D via an upgraded HDMI 1.3 box, either just half or quarter resolution, depending on the source. HDMI 1.3 isn't powerful enough to stream near-simultaneous 1080p frames. From a full 1080p source such as Blu-ray or a satellite receiver, you'll instead get dual 1080i images to create 3D; from a cable box, you'll get dual 540i images. I've been told the difference between full 1080p 3D and 540i 3D is essentially the difference between Blu-ray and DVD, which for most people is not that big of a difference. I still think you'll want at least a 65-inch 3D HDTV, though, to really get an immersive 3D experience.
If you've got a non-BD Live player, you're SOL. But for everyone who just bought a Blu-ray Live player, breathe easier you just saved yourself around $400 and you're halfway to viewing Avatar at home next spring."
So yeah they do 1080i. Satellite and PS3, cable does 540i. Whew yesterday I thought I'd be looking at 540i for 3d, guess direcTV it is.