You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: CABLE TELEVISION 
Clue: 2002's "A Season on the Brink" was this cable network's first original movie
espn/espn2

Category: BRITISH ROYALTY 
Clue: Before Prince Andrew, he was the last Duke of York
king george vi

Category: 20th CENTURY PEOPLE 
Clue: The July 1, 1946 cover of Time magazine depicted him with the caption, "All matter is speed and flame"

albert einstein