TARDIS Redecoration Upgrade - Season 13 Control Room changes to Season 15. An animation of the TARDIS console upgrading itself in secret, which is revealed to have happened prior to The Invisible Enemy.
During Season 13 the TARDIS console room was only seen in Planet of Evil and Pyramids of Mars. The following year, whilst the Doctor was showing Sarah around the TARDIS, a wood-panelled control room was discovered, and that became home for Season 14.
When the Doctor returned to the white control room with Leela in The Invisible Enemy, the Doctor notes that it's been closed for redecoration.
So here, in as much detail as I could, are the two control rooms, and the change between them...
Tags: TARDIS Redecoration Upgrade - Season 13 Control Room changes to Season 15, TARDIS, Console, Room, Control, Pyramids, of, Mars, Invisible, Enemy, Season, 13, 15, Doctor, Who, 3D