. . . . . "Sheldon and Leonard meet Professor Proton (Arthur Jeffries) again, who chooses Leonard to collaborate on his paper instead of Sheldon, which upsets the latter. Sheldon then brings in Bill Nye as his new idol, but is soon ditched by Nye. Meanwhile, Raj is upset when Howard joins him in coming to Girls' Night with Penny's Posse."@en . . "7"^^ . . . . . . . . "2013-11-07"^^ . . . . . . . . . . . . "Season 8"@en . . . . . . . . . . . . . . . . . . . . . . "Dr. Arthur Jeffries a.k.a"@en . . . . . . . . . . . "The Itchy Brain Simulation"@en . . . . . "The Proton Displacement"@en . . . . "The Romance Resonance"@en . . . . . . . . . . . . . . . . . . "Bob Newhart as"@en . . . . . . . "The Proton Displacement"@en . . . . . . . . . . . "Bill Nye as Himself"@en . . . . . "7"^^ . . . . "Season 6"@en . . "Sheldon and Leonard meet Professor Proton (Arthur Jeffries) again, who chooses Leonard to collaborate on his paper instead of Sheldon, which upsets the latter. Sheldon then brings in Bill Nye as his new idol, but is soon ditched by Nye. Meanwhile, Raj is upset when Howard joins him in coming to Girls' Night with Penny's Posse."@en . . . . .