If you're not knowing about the saga of Daniel LaRusso (how old are you? minus 12?) then it's time to get learned. These movies are on some real life-affirming/life-changing shiz. Straight up, I keep the "You're The Best Around" song from the tournament montage on repeat during my 30 minutes of elliptical.
Now collected in this DVD boxset are all four of the Karate Kid movies. Wait...there were four of them? I only remember the first two, and maybe the third. Was it the last one that starred the dude who was really a chick?