Shocking! ;D (Okay, come on, someone had to say it!)
I find it interesting, that the most recent issue of TV Technology (11/4/09) has a story about this issue (ENG/SNG Trucks being too close to power lines.) (Page 35)
They actually show a "government surveillance/transmission vehicle" parked extremely close to some power lines. From the photo, it's way to close for my comfort.