(CBS) — Today is the 30th anniversary of one of the most bizarre episodes in the history of local broadcasting.

WBBM’s Rob Hart looks back at the exploits of the Video Pirate.

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Airwave pirates broke onto two Chicago television stations late on Nov. 22, 1987. Someone wearing a Max Headroom mask appeared for several seconds. (YouTube/jonrev)

Channel 2 anchor Bill Kurtis was among the journalists trying to explain what happened late in the evening of Nov. 22, 1987.

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Someone dressed as the science fiction character Max Headroom broke into programming on Channel 9 and Channel 11.

The Channel 9 intrusion had no audio. But when the pirate hacked channel 11 two hours later, Max Headroom “spoke,” albeit in garbled audio.

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The video pirate has never been caught. It’s the city’s version of a perfect crime.