Feb. 17: What the heck just happened?

Since 2005, a whole slew of us -- consumers, manufacturers, public officials -- have been learning about or working toward digital TV transition on Feb. 17. So why, with just a month to go, might that date be pushed back? John Eggerton of Broadcasting & Cable mulls how Feb. 17 went "from set in stone to writ in sand" in a mere week.