ICYW: I'm MIT Class of 2013, current Assistant Director of Admissions for MIT, and used to interview applicants between graduating and my current gig. So I've experienced pretty much all aspects of the interview...

0:08 Our deadline
0:22 What happens during an interview
1:30 What to wear
2:16 How much does the interview matter??
4:16 What if I bomb the interview????
5:41 Quick tips for the interview