Even live you can't be sure.
Microsoft has applied for a patent for a system that changes the speaker's words during a broadcast, and then outlines his lips so that the change is not visible. The artificial intelligence agent listens to live audio and chooses words to replace based on the viewer's profile: age, languages and place of residence. Delay from 1 to 10 seconds.
It turns out that two viewers of the same broadcast can hear different versions of the same speech. At the same time, the main part of the application does not require the viewer to be warned about the editing.
a coincidence