“The Savage Curtain”
“The Savage Curtain” An Excalbian stone creature declares that Kirk and Spock together with the “good” Abraham Lincoln and Vulcan philosopher Surak have to fight against the “evil”, namely Genghis Khan, the arms dealer Col. Green, the mass murderer Zora and the Klingon villain Kahless. The fight serves the sole purpose to explain the difference between good and evil the Excalbians do not know, but they ultimately learn it when they see that fighting is never good. summary by Ex Astris Scientia
Ughhrr… A very loooooong way fo explaining that fighting is no good. Who would have thought? 
It was nice to see Surak, though. However, the emminent Vulcan disappointed me a little. Also, how come Lincoln was referred to as the original character? Come on!
Overall, a boring and irritating episode. By the time I saw it, I knew TOS could do better than that.