Star Trek: Discovery S01 E07 “Magic to Make the Sanest Man Go Mad”
Lt. Paul Stamets openly talking about falling in love with his boyfriend Dr. Hugh Culber without it being used as a plot device, and being an openly gay couple was worthy of Star Trek history in itself. But to then also see two women dancing in the background of a party, being just simply shown as two people in love. Enjoying themselves like any other member of the crew. That was beautiful.