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The Big Bang Theory
S4, EP6 "The Irish Pub Formulation"
Leonard keeps an affair a secret from Sheldon, Howard and Raj.
S4, EP7 "The Apology Insufficiency"
Sheldon's interview with the FBI jeopardizes Wolowitz's security clearance.
S4, EP8 "The 21-Second Excitation"
While the guys camp out for a long-awaited movie screening, Penny and Bernadette invite Amy to her first slumber party.
S4, EP9 "The Boyfriend Complexity"
Penny asks Leonard to lie to her father (Keith Carradine); Howard, Raj and Bernadette pull an all-nighter at a telescope.
S11, EP18 "The Gates Excitation"
Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers; Leonard, Koothrappali and Wolowitz do everything in their power to meet him; Sheldon thinks he is the victim of a prank.
S11, EP17 "The Athenaeum Allocation"
Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy; Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.
S11, EP16 "The Neonatal Nomenclature"
When Bernadette won't go into labor, her friends try different tactics to get things started; Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.
S11, EP15 "The Novelization Correlation"
Sheldon petitions Wil Wheaton to appear on the new "Professor Proton" show, but Wil offers a role to Amy instead; Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.