In the second season episode "The Most Handsome Boy On The Planet", Ben "Pop Pop" Goldberg was played by the late actor Paul Sorvino. In this episode he is played by actor Judd Hirsch.
Although this episode, like most of the rest, is said to be set in "1980-something", Adam watches an episode of "Alf" which ran from fall of 1986 to spring of 1990.
Adam's wearing a Robocop t-Shirt.