13 million vs. 4 million

Ida Mae Astute / ABC via Getty Images

Gabrielle Giffords in an interview with Diane Sawyer.

Number of viewers who watched the ABC 20/20 special featuring a Diane Sawyer interview with Congresswoman Gabrielle Giffords, versus the number of viewers who watched a NBC Rock Center special featuring a Bob Costas interview of former Penn State coach Jerry Sandusky (via Hollywood Reporter)

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