It's also interesting to see them obviously miming their various stations on the bridge: Nimoy looking into Spock's hooded viewer at the science station, Shatner at the Captain's chair, Takei and Koenig at the helm/navigation console (Although Koenig seems to think it was lower than Takei does), Kelley and Doohan standing by. I wonder how much they had to adjust the postures on the final figures?
Seems like today they'd just go to TrekCore and pull any number of episode frames.