Star Trek - The Original Series, Episode 76: Requiem For Methuselah [VHS]
An outbreak of Rigellian fever aboard the ship forces Kirk to find an antidote on Holberg 917-G, where he meets the mysterious Flint.TREK TRIVIAThe screen Flint and Rayna use to view the landing party was the light panel in "Return of the Archons."  Flint's castle is actually the Rigel VII fortress from "The Cage."The piano Spock plays is a piece of history.  It was featured in Orson Welles' classicCitizen Kane.