There have been numerous in NuWho of people throughout time and space being aware of Gallifrey's destruction, and the fact that the Doctor is the last Time Lord. In 2006/7, Mr Finch spoke of the Time Lords in the past tense (School Reunion), and in 1580 Rosanna also seemed to be aware of the War (The Vampires of Venice). But it's when one takes the classic series into consideration that things become problematic. In The Three Doctors, it was strongly implied that Gallifrey existed contemporary to Earth in the 1970s. In The Two Doctors, set around 1985, the Time Lords were very much in power, and references made by characters such as Sabalom Glitz implied that they were considered very much alive around 2,000,000 AD, as shown in The Trial of a Time Lord. So how come in the new series, wherever and whenever the Doctor travels, be it past, present or future, the Time Lords are considered long extinct or mythical?