Star Trek: The Animated Series, Series 1, Episode 8.
First broadcast on Saturday 27 October 1973.

This week, with a budget of dozens of crisp American dollars at their disposal, Joe and Nathan pull out their smocks, palettes, easels and oils in order to bring you a lavishly illustrated story of human creativity and achievement in a 25-minute episode you won’t be embarassed to show your kids. Or not terminally embarrassed, anyway.