According to the calander on the wall, it is 1973, but in the obituary that Ralphie looks at later on, the lady for whom the obit is written doesn't die for another year!
Hungry Hungry Hippos
Ralphie's daughter says she wants the Hungry Hungry Hippos game for Christmas. The movie is set in 1973 and the game wasn't introduced by Hasbro until 1978.
