: Penny sells the car Leonard previously bought for her because her new pharmaceutical job provides a company vehicle. When she tries to return the money, it leads to an argument about their shifting financial dynamic.
: Sheldon and Raj consider joining a research expedition in an abandoned salt mine to study dark matter. To test their endurance for the harsh, cramped conditions, they spend time in the university's underground steam tunnels. Watch The Big Bang Theory S08E06 HDTV XviD-FUM ...
: During their time underground, Raj and Sheldon discuss Star Trek: Voyager , Miley Cyrus, and the logic of Hannah Montana's secret identity. Production Credits Director : Mark Cendrowski : Penny sells the car Leonard previously bought
: While in the tunnels, Sheldon struggles with claustrophobia and the lack of proper bathroom facilities. To test their endurance for the harsh, cramped
: To resolve their money issues, Leonard and Penny visit Howard and Bernadette. However, they quickly discover that the Wolowitzes’ own financial arrangement—where Bernadette earns significantly more and provides Howard with an "allowance"—is equally complicated. Notable Moments
: Despite their scientific ambitions, the simulation only lasts 11 minutes before Sheldon flees in terror after spotting rats, leaving Raj behind.