Sadly, Grace decided to leave Eric and the series behind in Season 7.
The series was notorious for not telling viewers exactly what year it was.
However, by the end of its run fans were informed that the year was 1979.

“In the episode, Eric and the gang are set to head to their prom.
Instead of making it out unscathed, Eric would be at the hospital in a coma.
The rest of the series would simply be Eric’s coma dream, according to the theory.

While the theory is an interesting one, it likely isn’t true.
However, the sitcom may deserve a re-watch with this new perspective in mind.