This September, we're going to see a side of Dr. Sheldon Cooper we've never seen before. CBS is officially moving forward with Young Sheldon as part of its new fall line-up. And today, we get the first trailer starring Iain Armitage as the 9-year-old prodigy in a pilot that was shot by Iron Man and Jungle Book director Jon Favreau.

Spin-offs are as old as the medium of TV itself, and their successes have been few and far between. But when it comes to The Big Bang Theory, it is one of the most popular sitcoms of all time, and the small screen comedy ratings champ for the past several years. The mothership series The Big Bang Theory was recently renewed for two more years. But that apparently wasn't enough Sheldon Cooper for CBS, as this prequel will continue the laughs throughout the week.

RELATED: Young Sheldon Renewed for Three More Seasons at CBS

9-year-old Sheldon Cooper (Iain Armitage) hasn't found it easy growing up in East Texas. Being a once-in-a-generation mind capable of advanced mathematics and science is never helpful in a land where church and football reign as king. And while the vulnerable, gifted and somewhat naïve Sheldon takes the challenges of this world head-on, his overly normal Christian family must find a way to contend with his unique outlook on the world. The Big Bang Theory's multiple Emmy Award winner Jim Parsons also returns to narrate as Adult Sheldon.

This single-camera, half-hour comedy will give fans a chance to meet Sheldon in his younger years, as he sets forth on his innocent, awkward and hopeful journey toward the man he will eventually become in The Big Bang Theory. Chuck Lorre and Steve Molaro created the series and executive produce along with Jim Parsons and Todd Spiewak for Warner Bros. Television. Jon Favreau directed the pilot.

The cast for Young Sheldon includes Iain Armitage as Sheldon, Zoe Perry as Mary, Lance Barber as George Sr., Raegan Revord as Missy and Montana Jordan as Georgie Jr. The Big Bang Theory's multiple Emmy Award winner Jim Parsons narrates the comedy as Adult Sheldon.

Young Sheldon is one of the new comedies coming to CBS, and will be first introduced on Monday night. The coveted Monday slate will roll out in several phases this fall, with The Big Bang Theory once again opening the night while the Network broadcasts NFL Thursday Night Football. On Sept. 25, Young Sheldon will have a special Monday premiere at 8:30 PM following the season premiere of The Big Bang Theory, and then move to its regular Thursday time period on Nov. 2. Television's #1 new comedy Kevin Can Wait will open the season at 9:00 PM, providing a strong launch pad for the new comedy Me, Myself & I, starring Bobby Moynihan, at 9:30 PM. Scorpion, Monday's most watched scripted broadcast, returns at 10:00 PM to wrap up the night.

On Oct. 2, new family comedy 9JKL premieres at 8:30 PM, starring Mark Feuerstein, Linda Lavin and Elliott Gould, with The Big Bang Theory providing the best comedy lead-in on television. After NFL Thursday Night Football ends, The Big Bang Theory will move to its regular Thursday time period on Nov. 2. On Monday, Oct. 30, Kevin Can Wait will shift to 8:00 PM to open the night, followed by 9JKL. Then, Me, Myself & I will move to its regular 9:00 PM time period, followed by the return of Superior Donuts at 9:30 PM, starring Jermaine Fowler and Judd Hirsch.

The first trailer for Young Sheldon is finally here, and it runs a full five minutes giving fans enough of a feel about what to expect. Thanks to CBS, you can see it right now right here, then be sure to set your DVRs cause you don't want to miss what could be the best sitcom of the new Fall season. But lets be honest. It's a spinoff, it could alway wind up being one of the worst.