At the very least the figures and the set pieces they interact with. I don't know how big a renderfarm they have at RT, but they do have one. I've only seen one scene that I would have to see it in Poser to believe it. It was episode 8 of last season; the temple section that was hit by the giant bird and collapsed. It looked too complicated a physics sim to really pull off. But aside from that, everything I've seen is well within Poser's render capabilties. If you use 64 bits, lots of ram, and as Monty Oum says so well, you cheat like a motherf*cker.