Two episodes of Quantum Leap's first season were directed by Aaron Lipstadt, whose credits include Miami Vice, Medium, and Law & Order.
97 (list of episodes) Aaron Lipstadt Aaron Lipstadt His television credits include Miami Vice, Crime Story, The Equalizer, Quantum Leap, Law & Order, Law & Order: Special Victims Unit, Law & Order: Trial by Jury, The Division, Medium, The 4400, Elementary and many other series. 
