This one you have to see with your own eyes.
TBS recently showed Back to the Future.
Remember the scene where Marty writes a letter to old Doc Brown warning him that, "on the night I go back in time at 1:30am you will be shot by terrorists."
Well I hope you remember it because your memory is the only place you will find that phrase if you watch TBS.
In TBS's version the wording on that LETTER reads, "on the night I go back in time at 1:30am you will be shot."
Someone went in and erased the words, "by terrorists," on the film. An audio edit you can sort of get away with still but somebody got out the electronic whiteout and rewrote a bit of film history to be more in tune with contemporary SJW politics.
1984 arrived thirty three years late but it's here now.