'Wizard of Oz' goes hi-def on 70th birthday

• Story Highlights
• 'The Wizard of Oz' debuted in movie theaters in 1939
  
• The classic film became available on Blu-ray on its 70th anniversary
  
• Original munchkin says, "... every time you see it, you see something new"
  
• Film won two Oscars for original score and song