This was my favorite show when I was 4 years old. I don't remember a lot about it except the characters names and the basic premise of the show. I even went so far as to paint "240-robert" on the side of my playhouse and named several stuffed animals after the characters. Any kid who came to my house was required to play rescue. Wish I could find some episodes online so I could see why I was so excited by this show. Mark Harmon was cute and all but I doubt at 4 I really cared so I assume it was the action scenes. I do have some vague memories of some scuba scenes and perhaps a helicopter rescue of some sort which we used to reenact by jumping off of aforementioned playhouse. Great memories.
