Definitions of rerun:

• noun:   a program that is broadcast again

  Example: "She likes to watch `I love Lucy' reruns"

• verb:   cause to perform again

  Example: "We have to rerun the subjects--they misunderstood the instructions"

• verb:   broadcast again, as of a film
• verb:   run again for office

  Example: "Bush wants to rerun in 1996"

• verb:   rerun a performance of a play, for example