Tom Cruise destroys the mailbox belonging to "M. Lauer", an obvious reference to Matt Lauer. During an interview in 2005 the two of them had a heated television debate about antidepressants and psychiatry.
According to this show, Meg's birthday is Father's Day.
The first appearance of Joe's father.
In the OB/GYN cutaway, Peter says a fetus is not breathing. Technicaly true and also normal. Aside from some minor, twitchy 'pseudo-breaths' late in the first trimester, a fetus will not breathe untill it is in the open air. The mother's blood sends oxygen across the placenta to the baby's blood. Any prenatal breathing would fill the baby's lungs with amniotic fluid, which is just fetal urine and sloughed epidermal cells.