10 Doctor Who Mistakes You Can NEVER Unsee
2. TARDIS Lighting (The Doctor's Daughter)
The TARDIS is one of the most advanced machines in the Doctor Who universe, capable of travelling anywhere in time and space in a matter of seconds, while also packing an endless labyrinth of corridors and rooms inside a small blue police box.
In fact, the TARDIS is so advanced, that it even has its own lighting rig, presumably to make its interior look as bright and welcoming as possible. Alternatively, this might just be a production mistake. You decide.
Anyway, at the very end of Series 4's The Doctor's Daughter, the Tenth Doctor hops back in his TARDIS and sets a course for Martha Jones' home on Earth.
During this scene, the camera pulls back to give us a wider view of the TARDIS console, and on the left-hand side of the shot, you can very clearly see an enormous lighting rig that has sneaked its way into the scene. Whoops.
Granted, the rig does sort of blend in with the similar colour of lighting seen in that central console pillar, but considering that the shot lingers for a good amount of time, it's truly baffling that nobody caught this blunder.