Did You Catch the 'Star Trek: Discovery' Finale's Deep Cut Callback to the Original Series?

(Note: This post contains spoilers for the finale episode of “Star Trek: Discovery.”) The first season finale of “Star Trek: Discovery” ended with a major shout out to the original 1960s “Star Trek” by bringing the titular ship face to face with the USS Enterprise itself. But the finale’s coolest callback to the original “Star Trek” wasn’t an updated version of the U.S.S. Enterprise in the episode’s final moments — it was a low-key, green-painted cameo from one of the fra...