Yes, this tv is 3D ready.
You need to buy the emitter and the glasses separately (Model SSG1000), which are currently discontinued.
You can purchased 3rd party emitters and glasses, such as the Xpand series which will work fine.
To enable 3D, you need to be using a 3D output such as a bluray player, Playstation 3 or Xbox 360 console, and plug it into the HDMI3 port of the TV.
You can then enable the different 3D modes from the TV menu, including checkerboard etc. The TV also does 2d-3d conversion.