my dad swears he saw the Max Headroom hijack live in 87 and the audio still bugs him

not my story, my dad's, but he tells it the same every time so i believe him. Chicago, Nov 22 1987. he's a teenager watching WTTW (the PBS station) late, they're running a Doctor Who, Horror of Fang Rock. and the picture just BREAKS into some guy in a Max Headroom mask, you know the 80s glitchy AI c……