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Prof Proton & Bill Nye Meet (TBBT 7x07 The Proton Displacement)
Prof Proton Returns!! (TBBT 7x07 The Proton Displacement)
Prof Proton "Why are you friends with sheldon?" (TBBT 7x07 The Proton Displacement)
Prof Proton Stays For Tea + Has penny got any single grandmas (TBBT 7x07 The Proton Displacement)
Sheldon visits Prof Proton & Insults Him (TBBT 7x07 The Proton Displacement)
Prof Proton Apologizes To Sheldon (TBBT 7x07 The Proton Displacement)
Sheldon Angry at Prof Proton, Amy calls Sheldon annoying (TBBT 7x07 The Proton Displacement)
Big Bang Theory: Professor Proton vs. Bill Nye
Prof Protons Science Show + A POTATO CLOCK!!
The Big Bang Theory - Proton Displacement
Girls Jewelery Night (TBBT 7x07 The Proton Displacement)
The Big Bang Theory - The Proton Displacement Promo
