When did BBC apply for the TARDIS trademark ?
The TARDIS has been shown to be incredibly rugged , withstanding gunfire ( the 1996 television movie , " Doctor Who " ; " The Runaway Bride " ) , temperatures of 3000 degrees without even scorching ( " 42 " ) , atmospheric re-entry ( " Voyage of the Damned " ) , falls of several miles ( " The Satan Pit " ) and sinking into pooling acid ( " The Almost People " ) .