According to Jim - The Yoga Bear

Seizoen: 8 - Aflevering: 8 / 172 - Eerst uitgezonden: 14 april 2009 - Episode ID: 412745

Jim becomes intrigued by Cheryl's raving about a yoga teacher so he decides to try out the class, only to end up impressed by the teacher. Both Jim and Cheryl end up taking separate private classes to relax from their busy family life.