Factual error: The model UN uses the new South African flag, but this flag only came into use in 1994.
Mini Murray - S1-E3
Factual error: Adam and Pops go to the movies and watch Poltergeist which came out in 1982. The following morning Adam is at the table eating breakfast with Erica, and he is wearing a Top Gun T-shirt. Top Gun didn't come out until 1986. (00:06:42)
Factual error: In the video shop, when Adam and Murray wants to borrow Temple of the Doom there's a cardboard banner with C-3PO and R2-D2 behind Adam. But it's version of these droids from TV series The Clone Wars, which started in 2008 and built on the prequels which started in 1999.
Factual error: As Murray and Adam first walk into the VHS rental, a pan shot displays a cardboard cutout of C-3PO and R2-D2. The cutout features artwork from the TV series "Star Wars: The Clone Wars" which first aired in 2008, where as "The Goldbergs" take place in the 1980's. (00:04:30)
Factual error: Towards the end, Beverly is wearing Crocs. They only came out in 2002.