"The Big Bang Theory season 9, episode 19 will air at the end of March as ABC is airing the NCAA tournament, but there are already spoilers for "The Solder Excursion Diversion."

According to "The Big Bang Theory" Wikia, Leonard and Howard are on their way to buy something when they stumbled into a screening of a movie with Will Smith.

Obviously very excited, they lie to the Bernadette and Penny about being late because of a flat tire. However, their mistake is to tease Raj about not being there. In retaliation, he tells the girls the truth.

The episode 19 synopsis teased spoilers for "The Big Bang Theory" season 9 as it reads, "Amy is shocked at a revelation from Sheldon after she buys him a new laptop. Also, Koothrappali sells out Leonard and Wolowitz after they lie to their wives in order to attend an early screening of a movie."

Meanwhile, showrunner Steve Molaro dished some spoilers for "The Big Bang Theory" as he said that there's going to be some changes in terms of Penny's career choices.

Penny is actually earning good money from her job in a pharmaceutical company where her BFF, Bernadette, also works. But she appears to have given up her dream of becoming an actress, which was why she was toiling at a Cheesecake Factory before meeting husband Leonard.

"We're starting to think about where Penny is in her life professionally. While she's doing well in her current career, she may not be in love with it. There will be another step."

Episode 19 will air on ABC on March 31. Watch out for more spoilers for "The Big Bang Theory."