Dead Planet
From Tardis Wiki, the free Doctor Who reference
As an authority on the subject because he had been around since the 1960s, Gaz was asked by his friend about the difference between Dead Planet era Daleks and Invasion of Earth era Daleks. Gaz replied that the Invasion of Earth variant had satellite television while the Dead Planet variant did not, something he thought was obvious. (NOTVALID: Doctor Who? 168)