Later that night, around 11:15 p.m., during a broadcast of the Doctor Who serial Horror of Fang Rock, PBS station WTTW (channel 11)'s signal was hijacked using the same video that was broadcast during the WGN-TV hijack, this time with distorted audio. The person in the Max Headroom mask appeared, as before, this time saying, "That does it. He's a freakin' nerd," before laughing and jeering, "Yeah, I think I'm better than Chuck Swirsky. Freakin' liberal."
There was not another verified intrusion incident of this kind in the United States until February 1, 2009, when Comcast customers in Tucson, Arizona, had Super Bowl XLIII interrupted for 30 seconds by an adult channel, although there was a similar, accidental, incident on KTBC in Austin, Texas in late 1989 when a late night technician, who was privately watching an adult channel for his own personal entertainment, threw an incorrect transfer switch, resulting in approximately 30 seconds of what was described as "hard core pornography" being broadcast.