Gotta love folks who are quick enough to snap a photo of a grammatical goof they spot on TV. @gabegamauf's photo on Twitpic captures how a your vs. you're blooper apparently made it past MTV's crack proofreading team.
Where does MTV go wrong? It mixes up the homophones your and you're.
- Use you're when you mean you + are. You're watching MTV.
- Use your to indicate possession. Your TV is turned on.
Correction: Your uncle David was talking about getting married.