The Bob Newhart drinking game that's mentioned was called Hi Bob and was where you watch The Bob Newhart show and drink every time a character enters and says "Hi Bob"
Jamie and Paul want to no one to mention about the pregnancy, and mention the Kevin Bacon game, and Paul mentions they tried it with Mickey Rourke but it didn't work. Paul Reiser worked with both of them in, "Diner"
Kevin Bacon appears in this episode about having a baby. Kevin Bacon also starred in "She's Having a Baby."