Channel 3rd is now hyping something called the "Carol and Craig Caravan." A promo features photos of anchors Carol Wang and Craig Negrelli, along with illustrations of a creepy-looking blue van.Whatever this is, it will be at some shopping center on Sunday from 2 to 4 p.m. In addition to the chance to meet two real, live, low-rated anchors, there's a promise of "free prizes" for the first 50