I really don't know whom Max is, other than that once someone had a Max Headroom mask on while hijacking a public access station, while either seriously fucking high or very mentally unhealthy. That's the extent of my knowledge on the subject.
Among the scary things that have come true in Max Headroom was the armed drones equipped with facial recognition software that was flying around gunning people down.
Other ideas put forth include instant ratings of network programs.
Television that watches you.