Following comments from Penny about the desperate state of his love life, Wolowitz decides that he's too depressed to help the others in an upcoming robot fighting competition. Sheldon accepts a challenge from his colleague Barry Kripke, so their robotic creations are pitted against each other in a one-on-one duel to the death.
On TV
First Shown
| Date | Time | Channel |
|---|---|---|
| Thursday 02 April 2009 | 9.30PM | E4 |
Last Shown
| Date | Time | Channel |
|---|---|---|
| Saturday 11 July 2009 | 7PM | E4 |

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