DOUCHED BY AN ANGEL
As you have probably heard, Rosa Parks died this week.
Two years ago, though--as you can probably surmise from the above sentence-- she was alive. I was flipping through the channels a couple years ago and paused momentarily on "Touched by an Angel" because Leo is a big fan of Della Reese.* The guest star was Rosa Parks, and the scene showed her stepping off of a bus, which helped as a contextualizing clue since she was pretty old at the time. Leo asked, "Hey, is that the ghost of Rosa Parks?"
*Leo is not really a fan of Della Reese. He does, however, rock out to this guy: