Photography by: Getty Images Entertainment

Raging MARY TYLER MOORE’s calling all her friends, begging them to boycott “America’s Got Talent” because it stars new judge HOWARD STERN, who told the world her ex-husband/good pal GRANT TINKER’s dead – even though he’s very much alive at age 86!

On “Late Night with JIMMY FALLON,” Stern gloated over his triumphal return to NBC after being fired in 1985 – and told by then-network chairman Tinker he’d “never work at this network again… over my dead body!”

Quipped Howard: “I think he has a dead body now, doesn’t he?…Sorry, Grant – yeah, he actually died!”

Said an insider: “Mary was shocked at Howard’s inaccuracy – and livid over his insensitivity in slamming a man she still cares for.

She’s calling friends to boycott ‘AGT’ – and asking them to call their friends!”

NOTE TO MTM: It was a mistake, not a murder. Chill!