Talk:Chameleon circuit

suggestion
The Doctor's TARDIS could use its own history section. we could cut and paste the information about its chameleon circuit and what happened to it to there. --***Stardizzy*** 13:27, 21 February 2007 (UTC)

Turn Left
When I encountered it, the article said:
 * After Donna Noble reported her encounter with Rose Tyler to the Doctor, he began noticing that the words "Bad Wolf" had begun to appear everywhere, including replacing the traditional police box lettering on his TARDIS. These words were also visible from the interior of the TARDIS over the doorway. It is possible the chameleon circuit was somehow activated in order to make this change. (DW: Turn Left)

This, to me, is highly speculative. I know the editor couches it in speculative language, but it's still way out there, to me. We see in The Parting of the Ways that the one absolutely demonstrated ability of "Bad Wolf Rose" is that she can take letters and spread them across time and space. All that appears to be done in Turn Left is that lettering has been changed, consistent with her demonstrated abilities. It's not at all explained by TL or TSE, but it does seem far more likely, since she whispered the words "Bad Wolf" to Donna, that she somehow made it happen of her own accord and powers. If she had the ability to actually activate the chameleon circuit, it would seem to me that her changes to the TARDIS would be more profound than the switching of a few letters in exactly the same font.

The other point is that the lettering over the door and on the phone compartment has changed over the years, indicating that it can be manipulated without reference to the the chameleon circuit. We also see in World War III and The Happiness Patrol that the TARDIS doesn't "auto-clean" its exterior; if someone grafittis or paints it, it stays on until cleaned off. Thus Rose could have changed the exterior without the use of a chameleon circuit.  Czech Out  ☎ | ✍  01:20, December 10, 2010 (UTC)