1: Big Bang theory stars, Jim Parsons and Mayim Bialik are set to guest star on the Young Sheldon finale.

2: Fans will be thrilled to see the reunion of these beloved characters on screen once again.

3: Parsons will reprise his role as Sheldon Cooper, while Bialik will return as Amy Farrah Fowler.

4: The Young Sheldon finale promises to be a must-watch event for both Big Bang Theory and Young Sheldon fans.

5: The crossover event is sure to bring back memories of the original show and create new ones.

6: Catch all the excitement and nostalgia as Parsons and Bialik grace the Young Sheldon finale with their presence.

7: Don't miss the chance to see your favorite characters from The Big Bang Theory come together one last time.

8: Tune in to witness the magic of this reunion and celebrate the legacy of these iconic characters.

9: Get ready for an unforgettable finale as Jim Parsons and Mayim Bialik make a special guest appearance on Young Sheldon.