Subscribe to HBO: http://itsh.bo/10qIqsj Doctors who use the metric system. HBO on Facebook: http://www.facebook.com/hbo HBO on Twitter: http://www.twitter.com/hbo HBO Films Official Site: http://itsh.bo/I83VP6 Check out other HBO Channels HBO: http://www.youtube.com/hbo Game of Thrones: http://www.youtube.com/GameofThrones True Blood: http://www.youtube.com/trueblood HBO Sports: http://www.youtube.com/HBOsports Real Time with Bill Maher: http://www.youtube.com/RealTime HBO Documentary Films: http://www.youtube.com/HBODocs Cinemax: http://www.youtube.com/Cinemax HBO Latino: http://www.youtube.com/HBOLatino Wanda Sykes: I'ma Be Me - The Metric System (HBO) http://www.youtube.com/watch?v=SU8506LwOaw