The Big Bang Theory Season 8 Episode 19
The Skywalker Incursion
Leonard and Sheldon prepare for a trip to UC Berkley where they'll be giving a talk, and Sheldon is a little too prepared for things like using public restrooms while they are there.
On the road trip, Sheldon and Leonard play car games and chat.
Meanwhile, Bernadette and Howard work on cleaning out Howard's mom's basement with the help of Raj, Amy, and Penny.
Leonard and Sheldon are making good time on their road trip, so they decide to take a detour to Skywalker Ranch in hopes of being able to check it out.
They try to get in, but the the guard won't let them. Sheldon gets out of the car and runs in anyway. Then the guards stop Sheldon with tasers. Luckily, they are both released with just a warning.
Penny and Raj play ping pong for Howard and Bernadette to help them decide if Howard can keep his Dr. Who TARDIS. They switch champions when Bernadette convinces Raj to throw the game. It turns out that both are great at serving, but that's about it. Bernadette convinces Amy to win the TARDIS because Sheldon would love it.
Sheldon and Leonard missed their lecture, and Leonard is annoyed with Sheldon. But, Sheldon points out the reasons the trip was great, including the fact that Leonard got to see him get shot with a taser. They decide that they had a wonderful adventure.