I dunno know, I think Harvick is more animated than Junior. If Junior is mad, he will usually not say anything back to you. Harvick will flat tell you like it is as if he is telling you face to face. I remember at Richmond he was yapping about another driver being in the way while smoking heavily. Every other word was the 4 letter version for about 20 laps. Harvick is definately Rated R, maybe even an NC-17 at times. Junior is PG-13 to R. When Harvick really gets angry his voice goes up about 10 octives while screaming obsceneties, hilarious.
I tried that scanner thing last year, don't work too well on dial-up.