Terminator Decoupling | [s2e17] The

Sheldon must guide Penny into his "sanctum sanctorum" (his bedroom) via phone.

Howard uses the pun "It's hot in here, must be Summer," which backfires so spectacularly that she eventually breaks his phone. [S2E17] The Terminator Decoupling

It takes seven times as long as a flight and costs twice as much. Sheldon must guide Penny into his "sanctum sanctorum"