. "Howard and Sheldon on a bump plane ride to Houston."@en . . . . . . . . . . . . . . . . "The Friendship Turbulence"@en . . . . . . . "7"^^ . . . . . . . . "Bernadette tries to decrease the amount of friction in Howard and Sheldon's friendship, while Penny's car breaks down and she is afraid she has to go back to work at The Cheesecake Factory."@en . . . "Bernadette tries to decrease the amount of friction in Howard and Sheldon's friendship, while Penny's car breaks down and she is afraid she has to go back to work at The Cheesecake Factory."@en . . "2014-03-06"^^ . "The Friendship Turbulence"@en . . . . . . . . . . . . . . . "Season 8"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "17"^^ . . . . . . . . . . "Season 6"@en . . . . . . . .