12 Season
279 Episode
The Big Bang Theory - Season 12 Episode 15 The Donation Oscillation (2019)
Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. Also, Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali's canceled bachelor party into a couple's trip.
- Country : United States of America
- Genre : Comedy
- Studio : CBS
- Director : Chuck Lorre, Bill Prady
- Cast : Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch