Kevin mentions that "Tuesday the 8th" was the day he bumped into Lisa Berlini in the hallway. In 1968, Tuesday the 8th was in October. The 8th of December would have fallen on a Sunday.
In this episode, Kevin is told that his parents had met when Jack called Norma when she worked at Macy's about returning a tie he had bought there. In episode 75, "Triangle", Norma says that they met a dance when Jack fought his best friend to win her over.
Newcaster Frank: For the first time ever seen by human eyes, the planet Earth, rising over the moon.
Walter Cronkite: Sort of puts things in perspective, doesn't it Frank? To think that there on that lovely glowing orb, wars are being fought, storms raging, people are being born, people dying, all our human conflict, our passion, our pain, being carried on, beneath that veil of clouded blue.
Narrator: And suddenly I got this funny feeling. Maybe I was blowing this whole thing out of proportion. I mean, Lisa wasn't going to laugh at me. And anyway, what if she did? Did it really matter? And that's when I knew what I had to do. I just had to pick up the phone... and call her.
Narrator: There are very few things in life as purely terrifying as calling a twelve-year-old girl on the telephone. Especially a really cute twelve-year-old girl. She was in my home room in third period social studies class. I'll never forget that day. Mrs. Ritvo let us watch the liftoff on TV. Now, at the time, I'd just gotten over this whole thing with Winnie Cooper, so I didn't really know I was ready for love. I just knew that I'd lost all interest in the space program. Blast off, splash down, blast off, splash down... who cared? But then... my gaze settled on... on her... on Lisa Berlini. Lisa Berlini was the kind of girl you dreamed about... but who would probably never even know your name. But then it happened. She looked at me - did you see that? She looked right at me! I don't know how to explain it. Except to say that when you're twelve... and a girl like that looks at you like that, even for an instant... everything else gets blasted out of your mind... and into the upper atmosphere.
"I'm a Believer" by The Monkees
"Theme from Romeo and Juliet" by Nino Rota
Kevin fakes sick on the same day the Apollo 8 entered its orbit around the moon. Apollo 8 actually did that on Christmas Eve and schools are closed for the holiday.
The Phone Call is a 1977 comedy movie starring Marc McClure.