The Roommate Transmogrification

"The Roommate Transmogrification" is the fourth season finale of the television series The Big Bang Theory that first aired on CBS on May 19, 2011. It is the twenty-fourth episode of the fourth season of the series and the eighty-seventh episode overall. Aarti Mann continues her recurring role of Priya Koothrappali while Brian George and Alice Amter reprise their roles of Dr. and Mrs. Koothrappali.