Mately, an STD-testing site and app, has taken down an advertisement featuring Bert and Ernie following a lawsuit threat by Sesame Street.
The ad, based on a viral Internet meme, ran with the tag line: "See Ernie, you've got nothing to worry about, everything is positive!"
"The Mately ad is an unauthorized, unlicensed use of our characters," Sesame Workshop told the BBC. "We will be contacting Mately and the appropriate parties with a cease and desist letter instructing them to take this down.
The New York startup quickly removed the image from its website and social media pages.
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