Roundel

The Roundels are a key feature of the Doctor's TARDIS, mainly as a decorative feature although occasionally they do actually fulfill a function. In the Original TARDIS The Roundels are basic white shapes on the wall, circular in shape. They are indented into the wallpaper. Later on the Third Doctoradded plastic furnishings to the edges of the roundels. One of them then became the replacement for the scanner. However, by the time of The Three Doctorshe had reverted to the original design.

NEW SERIES
In the first control room, Coral, the walls of the TARDIS feature backlit hexagons.