That detective in the yellow trenchcoat comes from a comic strip, not a comic book. It may seem like semantics, but it's an important distinction to make in the clue.
Nicholson's character was repeating Ed McMahon's iconic nightly intro for Johnny Carson on the Tonight Show. BTW, Carson once sued a porta-potty maker for naming his johns "Here's Johnny".
Blondie was also what Eli Wallach's character (Tuco, aka the Ugly) called Clint Eastwood's character (aka, the Good) in "The Good, the Bad and the Ugly". (Lee Van Cleef's "Angel Eyes" was the Bad)
Martha Stewart was accused of insider trading after she sold four thousand ImClone shares one day before that firm's stock price plummeted. Although the charges of securities fraud were thrown out, Ms. Stewart was found guilty of four counts of obstruction of justice and lying to investigators.
Technically, then, the answer is obstruction and lying to investigators,
I'm gussing that Tennis player Billie Jean King, is just a famous female name associated with Tennis, like Williams - and that explains why 54% of people knew the answer? Or JP has a lot of people >60ish who recall the event?
It looks like the match was rigged/thrown by Riggs. Reading the wikipedia article, 1970's tennis sounds a lot like WWF.
Let see, four score is 20 x 4, which would be 80. Then add 7, so now we have 87. Now subtract that number from the year of the Gettysburg address. Hmm, what was the date of the Gettysburg Address? 1860 something? Eh, screw it. I'm too lazy to do the math. (Well anyways, at least now I know the year of the Gettysburg address, just add 87 to 1776,)
Technically, then, the answer is obstruction and lying to investigators,
"No, #@$#%, I said I wanted a Tanqueray on the rocks."
It looks like the match was rigged/thrown by Riggs. Reading the wikipedia article, 1970's tennis sounds a lot like WWF.