Quotes: Internal Retcon

Mitch Connor: You know nothing about your dad, right?
Eric Cartman: I know enough. My mother is a hermaphrodite, so she is actually my father.
Mitch Connor: You really still believe that garbage? The people in your town sold you that line. Come on, you have to have doubted it all along.
Eric Cartman: How would you know anything about who my family is?
Mitch Connor: Heh! I know all about the swindles and schemes in this deadend town. You got lied to, kid, by the people who are closest to you.
South Park, "200"

"Oceania was at war with Eastasia: Oceania had always been at war with Eastasia. A large part of the political literature of five years was now completely obsolete. Reports and records of all kinds, newspapers, books, pamphlets, films, sound tracks, photographs—all had to be rectified at lightning speed. Although no directive was ever issued, it was known that the chiefs of the Department intended that within one week no reference to the war with Eurasia, or the alliance with Eastasia, should remain in existence anywhere."
1984

"The Media, never much good at analysis, is more and more breathless and incoherent. On CNN, even the stolid Jim Clancy started to hyperventilate when an Indian academic tried to explain how Iraq was once our ally and 'friend' in its war against our satanic enemy, Iran. 'None of that conspiracy stuff,' snarled Clancy. Apparently, 'conspiracy stuff' is now shorthand for unspeakable truth."
Gore Vidal, Dreaming War