When did BBC apply for the TARDIS trademark ?
With the 2005 series revival , a variety of TARDIS - shaped merchandise has been produced , including a TARDIS coin box , TARDIS figure toy set , a TARDIS that detects the ring signal from a mobile phone and flashes when an incoming call is detected , TARDIS - shaped wardrobes and DVD cabinets , and a USB hub in the shape of the TARDIS .