In four high-profile cases, the latest involving fast-talking Judge Judy, the presenters have started off speaking properly but have then descended into undecipherable nonsense - looking confused and unstable.
The frequency of the 'attacks' - and the fact that recorded examples of the mental meltdowns have been popular on websites - has led to conspiracy theorists pointing the finger at shadowy government experiments.
A popular theory being circulated online blames the U.S. Militaryâ€™s supposed research into using microwaves as a mind control weapon.
America has never admitted conducting such research but proponents say the effects - produced by microwave signals stimulating the brain with fake images and voices - exactly mimic those displayed in the recent on-air breakdowns.
As to why the Pentagon might be targeting U.S. television presenters, the microwave theorists are less clear.
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