Sheldon has a scientific breakthrough at the dentist's office. Dale and Meemaw go to the casino. Georgie makes a big mistake when Dale leaves him in charge of the store

Arriane Alexander, Bob Newhart, Bob Rumnock, Christian Benz Belnavis, Craig T. Nelson, Cyndi Lauper, Dave Fennoy, John Mariano, Lisa Denke, Phil Hendrie, Rich Grosso, Ryan Stiles, Sarah Baker, Wallace Shawn