One of the best things we could do to improve cultural literacy in this country is to bring back the old Warner Brothers cartoons so every kid in America can experience their unique and culturally sophisticated humor. When our kids were young, the WB cartoons weren't on TV regularly like they were when I was a kid, so we made sure they had a collection of VHS tapes. The in-jokes and puns and slapstick and historical references remain today as shared experience between me and my kids.
Bring 'em back so kids today can watch and learn!