The 90 Seconds That Hijacked All of Chicago TV

The 1987 Max Headroom Chicago TV hijacking is America's most infamous unsolved broadcast intrusion. On November 22, 1987 a masked figure cut into WGN-TV Channel 9 at 9:14 p.m. for 30 seconds, then WTTW Channel 11 at 11:20 p.m. for 90 seconds during Doctor Who. It explains the analog capture effect, the microwave links to the John Hancock Center and Sears Tower, why engineers stopped one but not the other, the Captain Midnight precedent, and the unproven Reddit Jay and K theory.