The curtains of CBS comedy sitcom "The Big Bang Theory" might be coming down in 2019 according to the show's very own Johnny Galecki. Galecki, who portrays experimental physicist Leonard, says the series might end with season 12.

Galecki told USA TODAY, "The only manner in which that cast has discussed wrapping the show is that we're all going to be very sad when that day comes. But I think at this point, everyone's very comfortable with 12 seasons being the time to go home and see our families."

The show was renewed for seasons 11 and 12 back in March 2017, which threw fans in a frenzy. CBS nor the show's creators and producers haven't addressed Galecki's statement. CBS Corporation Chief-Executive-Officer Leslie Moonves back in May 2017 expressed that she wants the show to push further than just season 12. During the CBS upfront breakfast last year, Moonves said, "I hope it goes beyond that."

"The Big Bang Theory" is still in its 11th season and is most likely only halfway done. The show is currently in the middle of the Sheldon Cooper (Jim Parsons) and Amy Farrah Fowler's (Mayim Bialik) wedding saga. Sheldon had already selected Leonard as his best man, while Amy picked Penny (Kaley Cuoco) over Bernadette (Melissa Rauch) as her maid of honor.

On the next episode of "The Big Bang Theory," Sheldon might be going solo with the preparations and will be kicking Amy out. With more time in her hands, Amy will be spending more time with his fiance's best friend Leonard. According to the summary of the episode, Bert Kibbler (Brian Posehn) will be replacing Howard Wolowitz (Simon Helberg) in the group.

If "The Big Bang Theory" does end in 2019, fans of Sheldon Cooper will still enjoy him in his younger days with CBS ordering season 2 of television series "Young Sheldon."