Jim Parsons, Johnny Galecki and Kaley Cuoco on The Big Bang Theory ending

CBS' The Big Bang Theory season 12 is almost over and show's lead star Jim Parsons recently opened up about the show's ending.

As earlier reported, it was Jim Parsons' decision of quitting The Big Bang Theory that made Warner Bros. and CBS come on this conclusion of wrapping up the series right after season 12. The 45-year-old Parsons recently talked to Entertainment Weekly about The Big Bang Theory coming to an end.

As per Jim, "It's both as complex and as simple as it just felt innately that it was time. It feels like we've really gotten to chew all the meat off this bone, as it were."

Parsons further revealed that he is a middle age man now and he himself does not know for how long he can wear Sheldon Cooper's T-shirts "without really long in the tooth."

"I think people are OK when they graduate things too, and there's frequently tears at graduation. It's hard to say goodbye to people you've worked with for so long," he further added.

Apart from Jim Parsons, the other stars from The Big Bang Theory have also opened up about the ending of the acclaimed comedy series. As per Johnny Galecki, who plays Parsons' best friend Dr. Leonard Hofstadter in the show, the ending is going to be very bittersweet.

While appearing on the Hollywood Foreign Press Association's official live red carpet pre-show, Galecki added that "There will be a lot of tears. I don't know what we're going to do with Kaley on the last episode — she's going to be waterworks!"

The 43-year-old Galecki further stated that he is going to miss the people who are involved with the show and added that he is not counting the days like a prison term instead he wishes to appreciate every day with everybody.

As Johnny Galecki mentioned, things are seriously going to be hard for Kaley Cuoco, who rose to success after her portrayal of Penny — Johnny's character's love interest and later wife in The Big Bang Theory. In a recent interview, Kaley Cuoco does not seem ready to let go of CBS' The Big Bang Theory.

"Everyone's saying the same thing. It's so sweet...12 years. I don't wanna leave, I don't wanna leave. I said it. I don't wanna leave!"