The 79-year-old comedian was walking out onstage at the start of the live show when she took a tumble just before reaching her seat.
Cameras captured Behar face-planting on the stage, with the dramatic vision beamed out to audiences across the country.
Co-hosts Sara Haines, 44, and legal eagle Sunny Hostin, 53, were heard gasping before they tried to help Behar get up.
"The View" moderator Whoopi Goldberg, 66, also rushed over to tend to the veteran star, telling her to "just stand."
Behar needed the help of Haines and Hostin to get back on her feet, and a production assistant also ran onstage for added support.
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The star later turned serious, telling anyone who suffers a fall to monitor their symptoms.
"The main thing -- just to talk seriously -- when Bob Saget fell, he died," Behar said. "If you hit your head, and you feel dizzy or you have blurred vision, or you feel like you want to go to sleep, go to the doctor. Because that will kill you."