Kev & Rob would happily give several kilograms of heronium to get to see "Those Old Scientists" again for the first time. They talk through this crossover episode that had no business being as good as it was, before seeking out other examples of alien artifacts whose activation (or difficulty in activating) is a key point in an episode, including "Magic to Make the Sanest Man Go Mad" (DIS) and "The Paradise Syndrome" (TOS).

TOS 2×07 Those Old Scientists

DS9 5×06 Trials and Tribble-ations

TNG 4×05 Remember Me

DIS 1×05 Choose Your Pain

DIS 2×12 Through the Valley of Shadows

TNG 6×20 The Chase

Music: Distänt Mind, Brigitte Handley