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 learns that D.J. hasn't been taking Mary to church, she insists they go as a family; Mark's attempt to conduct an unbiased survey on the upcoming election for his school project goes south when Jackie volunteers to help.