Xoanon
![](https://whobackwhen.com/wp-content/uploads/tom-baker-xoanon-super-computer-doctor-who-back-when.jpg)
The Doctor repaired a supercomputer by copy-pasting part of his own personality in among its ones and zeroes, and consequently the computer — Xoanon — goes totally bonkers, creating telepathic acolytes left and right.
Podcast
C089 The Face of Evil
The Fourth Doctor gets a brand new companion and someone’s carved a familiar face on Mount Rushmore