Editor's note: The air time of this episode has changed.

SHELDON AND DR. STURGIS HAVE THEIR FIRST FIGHT WHEN THEY DISAGREE OVER A MATH EQUATION, ON "YOUNG SHELDON," THURSDAY, FEB. 7

"A Math Emergency and Perky Palms" - Sheldon and Dr. Sturgis (Wallace Shawn)
have their first fight when Dr. Sturgis marks a question wrong on Sheldon's test. Also, Mary takes over for Pastor Jeff (Matt Hobby)
when he's out sick, on YOUNG SHELDON, Thursday, Feb. 7 (8:31-9:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

Iain Armitage (Sheldon)
Zoe Perry (Mary)
Lance Barber (George Sr.) Annie Potts (Meemaw)
Montana Jordan (Georgie)
Raegan Revord (Missy)
Jim Parsons (Voice of Sheldon)

RECURRING CAST:

Wallace Shawn (Dr. John Sturgis)
Barry Corbin (Mr. Gilford)
Matt Hobby (Pastor Jeff)
Danielle Pinnock (Ms. Ingram)
Sarah Baker (Ms. Hutchins)

GUEST CAST:

Nancy Linehan Charles (Peg)
Bryce McBratnie (Elliot)
Megan Park (Francine)
John Eddins (Paramedic)
Parker Dailey (Five-Year-Old Sheldon)

STORY BY: Chuck Lorre & Steven Molaro

TELEPLAY BY: Tara Hernandez & Jeremy Howe & Connor Kilpatrick

DIRECTED BY: Jaffar Mahmood