Iris and Barry talk after coming out of a movie in episode 1x03 "Things You Can't Outrun".
Lucifer's mother wakes up in the body of a man who recently had a heart attack but is soon hit by a bus in episode 2x02 "Liar, Liar, Slutty Dress on Fire".
Oliver prepares for the upcoming mayor debate with his team in episode 4x14 "Code of Silence".
Cayden James arranges for his old allies to be brought to where he is holding the bomb in episode 6x13 "The Devil's Greatest Trick".
Darhk and Merlyn walk through Los Angeles on their search for the spear in episode 2x09 "Raiders of the Lost Art".
Mack and Sherry Belber tell the story of their band's last show and of Paul Shelton's breakdown in episode 1x08 "Ultravinyl".