Why did That '70s Show end after season 8? 1 / 9
The period sitcom ran from 1998 until 2006. 2 / 9
The series held steady ratings but number started to shift downward. 3 / 9
Topher Grace decided to leave the series after season 7. 4 / 9
Josh Myers was then cast as a series regular, playing Randy. 5 / 9
Ashton Kutcher also left his role as Michael Kelso in season 8. 6 / 9
The casting changes greatly hurt the chemistry of the series. 7 / 9
It also didn't help that the 70s decade was nearing an end on the show. 8 / 9
It was clear That '70s Show had run its course so it was cancelled after season 8. 9 / 9