[s12e17] The Conference Valuation Link

Back at home, Howard is left alone with the kids and invites the guys over for company. The day takes a turn when Sheldon finds a book on developmental experiments for children.

Watch Penny's masterful drug-pushing pitch at the convention: [S12E17] The Conference Valuation

Sheldon and Amy use the children to test cognitive and motor skills, much to Howard's amusement and Leonard's distress. Back at home, Howard is left alone with

Penny and Bernadette travel to San Diego to promote a new drug. Penny, thriving in her role as a sales lead, catches the attention of Danny, a representative from a rival company that Bernadette despises. Back at home

Danny offers Penny a job, leading her to realize she doesn't always feel appreciated by Bernadette.