Character mistake: Kitty wants to reunite Bob and Midge together, saying it will reunite their only daughter. Bob has 3 daughters (just seen the younger one once). (00:12:30)
Character mistake: When Bob shows up in the driveway with the free calendar from Red's muffler shop, the calendar says "Foreman and Son." Their last name is spelled "Forman" without the E.
Chosen answer: He isn't. Time moves slowly in the show because they didn't want it to turn into "That '80's Show". In the first episode, he say's he's 17 but the second episode was his 17th birthday so he must have been 16. The first 12 episodes are set in 1976, the next 2 seasons are set in 1977, the next 3 seasons are set in 1978, and the remaining shows take place in 1979 with the final show on Dec 31, 1979 when Eric must be 20 as he turned 17 in 1976.
Myridon