A Research Study and Czechoslovakian Wedding Pastries

Summary

When Dr. Sturgis recommends Sheldon and Missy for a university research study on twins, Mary is unhappy when the test results go to Sheldon's head.

Guest stars

• Amy Farrington as Sandra Thorpe
• Wallace Langham as Edward Pilson
• Madison Wulf as Five-Year-Old Missy
• Parker Dailey as Five-Year-Old Sheldon
• Wallace Shawn as John Sturgis