Big Bang Theory season 9 episode 19
Sheldon and Amy in The Big Bang Theory season 9 CBS

The Big Bang Theory season 9 is on a two-week hiatus and will return with fresh episodes on 31 March at 8pm EST on CBS. Episode 19 is titled, The Solder Excursion Diversion, where Sheldon is likely to share a secret with Amy, while Leonard and Howard will lie to their respective spouses.

The official synopsis reads as follows:

In the previous episode, Sheldon, Leonard and Howard decided to get an idea patented and split profits earned equally. Sheldon, who is entrusted with penning the contract, added a clause which would ensure that his share of money will go to establish a college fund for Howard's unborn baby.

In the upcoming episode of TBBT, Sheldon could be seen sharing a big secret habit with Amy. Also, Rajesh will rat Howard and Leonard out to Penny and Bernadette.

Warning: Spoilers ahead

According to a leaked report, Amy buys Sheldon a new laptop, and will ask him to get rid of the old one. Following this, the genius would confess that he has a storage where he keeps all his stuff, because he does not want to throw anything away.

Meanwhile, CBS has cast two-time Emmy winner Judd Hirsch to play Leonard's father. Johnny Galecki admitted that he had a hand in casting Hirsch as his on-screen father after meeting him at NBC's James Burrows special.

Galecki said, "I met this fellow a month or two ago and he's a hero of mine and I knew that he was a hero of Chuck [Lorre] and Bill [Prady's], so I just accosted him and cornered him and practically made him commit on the spot to play my father. I'm really excited about it. It's going to be a lot of fun."