STAR TREK: Original
Watching the City Of Edge of Forever and I didn’t remember this little touch. They just arrived on Earth, back in time, and realize that they will have difficulties to hide what Spock is, and he looks a bit distressed for a Vulcan, and Kirk just rub gently his arm up and down and assure him that they will find a way to “explain him”.
Captain Kirk, Spock, and McCoy are taken prisoner on a planet that parallels earth's Roman Empire. The leaders insist that the existence of their society must remain undisclosed to the outside world, and they order Kirk to command his crew to abandon ship and integrate themselves into the culture or be executed. Kirk refuses, and Spock and McCoy are thrown into the gladiatorial games. From Bread and Circuses (Star Trek)