Space station (Dr. Who For Keep Australia Beautiful)

The Fourth Doctor was once in discussion with a computer onboard what appeared to be a space station orbiting a planet, two light-years away from Gallifrey, in the constellation of Kasterborous. The interior had a peculiar array of furnishings. (TV: Dr. Who For Keep Australia Beautiful)

Behind the scenes
Some fans have interpreted the setting of Dr. Who For Keep Australia Beautiful as the Doctor's TARDIS, but there is little evidence to support this.