I have a similar pet peeve when I see radio DJ's portrayed in movies/tv (having been a Dj at 3 radio stations over 12 years). They always so the DJ or talk show host sitting in the studio talking to a caller on-the-air but they are not wearing headphones. You HAVE to wear headphones to hear everything that goes on because the studio itself has to be soundproof when the mic is on because otherwise if the callers voice was going over the speakers in the studio, the mic would pic THAT up as well and thats what causes feedback.
I know. Way too nerdy technical nit-picking and it doesn't look as good to have everyone with big ugly headphones on but... still annoying. I also went to school for video and film production so it annoys me when I see things like reflections of camera trucks in the sides of cars or the shadow of the camera helicopter on the side of the mountain during a car chase or continuity issues. haha
OK, see, I got too worked up over this. haha That's it, I'm moving to England now. Like.. NOW now. See you in 10 hours.