Courtney Peldon's (Lauren) real life sister, Ashley, plays Diane, the girl in the boat with Mark.
A new version of the theme song has been rerecorded for this season. It's identical to the previous versions before but this one has fewer tools audible in the background and is more instrumental driven, with a new guitar riff. This version was used for the final two seasons of the series.
When Tim drives past the kids in the speed boat, knocking them into the water, you can see the camera on the front of their boat that they used in the previous shot.