The NY Post reports that 'Big Brother 3' will have several "plane-spotters" on staff this summer to keep an eye out for small airplanes dragging large banners with personal messages to the show's contestants.

"If we see a contestant looking up at one of those banners this season, it could end up getting them expelled from the house," 'Big Brother 3' executive producer Arnold Shapiro told The Post.

The plane spotters, equipped with radios will be situated somewhere near the "Big Brother" house and will radio ahead to producers if one of the banner planes seems to be headed for "Big Brother" airspace. "We'll know when they're about a mile out," Shapiro said. If the show's contestants are outside the house in its walled-off backyard, they'll be asked to go inside without looking up.