Paul Wilson

Sheldon says an emotional goodbye to Fun with Flags as he and Amy record the final instalment of their internet show. Leonard, Howard and Raj clear out the office of a recently deceased professor and try to find something significant in his research.

When Geena discovers that DJ hasn't been taking Mary to church, she pushes them to all go as a family. Mark's attempt at an unbiased survey for his school project takes a turn when Jackie volunteers to help.