The Big Bang Theory and Young Sheldon are going to combine forces next month. It has been announced that Iain Armitage, Lance Barber, and Montana Jordan from the spin-off series are going to guest star on the main show. It has not been revealed how this crossover is happening, which is important since the shows have about a thirty-year difference between them. With that being said, it has led to speculation the young Sheldon Cooper is going to meet the older Sheldon Cooper.
CBS announced the The Big Bang Theory and Young Sheldon crossover event, but declined to shed any more light on the special episode, except for the fact that it is airing in December. Obviously, a flashback seems like the most obvious way to pull off this feat, but that also seems a little too easy was well. It will be very interesting to see how these two worlds will collide when the episode airs sometime next month. Fans would more than likely love to see Ian Armitage's Sheldon interact with Jim Parson's portrayal of the iconic character. The Bing Bang Theory has used dream sequences before, so Sheldon could end up having a nightmare where he reunites with his younger self.
The idea of a crossover between The Big Bang Theory and Young Sheldon was actually talked about back in April. Young Sheldon co-creator Steve Molaro talked about the possibility, stating that "There's no reason why we can't keep going back and forth in this weird time portal that has been created between the two shows." There have been connections between the two shows, with the origin of the "Soft Kitty" song and many more, but we have yet to see a true crossover episode.
Since The Big Bang Theory is ending after it current season, now is the time to pull out that Young Sheldon crossover. It was announced back in August that Season 12 of the main show was going to be the last one, putting an end to the longest-running multi-camera series in TV history. Fans are pretty broken up about the The Big Bang Theory, and so are the stars of the hit show. Kaley Cuoco admits that she "cried for a week," after show boss Chuck Lorre shared the news with the rest of the cast. While it's going to be sad, it's also good for the cast to be able to move on and do different projects.
While The Big Bang Theory is coming to a close, Jim Parsons will remain on as an executive producer for Young Sheldon. Parsons was recently asked what he'll miss the most about not filming the show anymore. The actor noted that he will miss not seeing the cast all of the time, but he will really miss co-star Simon Helberg, noting that they have a pretty strong relationship. There's still a lot more of The Big Bang Theory to be filmed, so the cast doesn't have to worry about saying goodbye just yet. TVLine was the first to announce The Big Bang Theory and Young Sheldon crossover.