KEY POINTS:
A woman claims in a lawsuit that she was injured in a dash for seats at Oprah Winfrey's talk show in Chicago.
Orit Greenberg, who seeks US$50,000 in damages, claims Harpo Studios failed to control the audience on December 5, 2006.
Audience members were told to sit wherever they wanted and the crowd allegedly pushed Greenberg down a flight of stairs, causing "severe and permanent injuries".
