Such Sweet Sorrow: Part 2 - S2-E14
Character mistake: When Tyler arrives in the Klingon ship, Captain Pike says "calvary arrived just in time." The word is "cavalry." The subtitles show "cavalry."
Star Trek: Discovery (2017)
1 character mistake in season 2
Starring: Jason Isaacs, Doug Jones, Sonequa Martin-Green, Shazad Latif
Genres: Sci-fi
Factual error: Science Officer Tilly calls the planet Trill a "very big" planet. It has an area of 500 million square kilometers. But that is not so large a planet. The Earth has an area of 510,100,000 square kilometers. So Trill is slightly smaller than Earth. Not really a "very big" planet.
Trivia: Paul says to Dr Cruz that they will take a trip to La Boheme. That is an homage to Paul's role on Rent, where he sings La Vie Boheme.
What's Past is Prologue - S1-E13
Question: Why are Joann Owosekun and Rhys still wearing the Terran uniform while everyone else on the ship has switched to the Federation's as they were supposed to?