1x15 The Prodigal

http://josswhedon.blogspot.com/2012/04/buffy-and-angel-episode-viewing-order.html?m=1

http://buffy.wikia.com/wiki/Viewing_order_suggestion_for_Buffy_and_Angel

Correct order for viewing Buffy the Vampire Slayer & Angel

The optimal viewing order for episode of Buffy the Vampire Slayer and Angel, to keep the shows in chronological order as they crossover

http://slayalive.com/showthread.php/3924-The-Buffy-Angel-watching-guide

watched in 2021