Ozzy Osbourne was a heavy metal icon. He was also an unlikely reality TV pioneer on "The Osbournes," with his wife Sharon and kids Kelly and Jack.

As the lead singer of Black Sabbath, he helped invent heavy metal. On “The Osbournes,” he presented a comedic counterpoint to his rock ’n’ roll infamy.

Ozzy Osbourne may have sold millions of albums, bitten the head off a bat, and helped invent heavy metal, but nothing rattled him quite like reality TV. In the wake of his death at 76, fans are revisiting every chapter of Ozzy’s life,