Shows Chevy s10 Blazer from 1995 as well as an early 90s Toyota 4runner. While the show takes place in the "1980s".
When Murray tells Adam that he can learn fencing from an encyclopedia, a generic red encyclopedia volume is placed on the table, rather than Murray reaching behind him to take one of the World Book Encyclopedias in a blue and white binding (correct for the era) from the shelf behind him.
Bev mentions that she saw someone's son working at the local Walmart but the first Walmart in Pennsylvania didn't open until 1990 and the first in the Philadelphia area was not until 1995.