This was from a British Sitcom called "My Family" I never watched it, but there was an episode where a character was portrayed as obese in the future, and she wore this fat suit. I liked the effect when I was younger and a lot less exposed to fat fetish art, looking back it's crazy how much this blew my mind...
Also unfortunate that they definitely tried to make the actress look not just fat, but worse. Fatphobic UK for you.