Yes, you can. That is why I posed the question which pin is IR sync on. You would just make a circuit that read the sync, and an IC that controlled an IR led at that sync. A quick look with a video camera at any 3D TV would show you the IR sync. The only complication comes if the PS3 requires the TV to tell it it is 3D, if that were the case you would have to mimic that signal. You're sure to see hacks coming out for any TV that support 120hz. It is technically even possible on 60, but not high quality.