Insiders tell TVNewser the Hillary Clinton campaign was prepared to give exclusive access for the next 48 hours to ABC's 20/20, but because of a scheduling conflict, ABC News passed on the offer. Sources tell us the campaign had wanted ABC to accompany Sen. Clinton for a 48 hour period beginning today, with the report airing Friday night on 20/20.

With the Super Bowl airing Sunday, and thus presumably lower than normal viewership for 60 Minutes, an appearance on 20/20 would have been the Clinton campaign's best shot at getting a prime time network audience before Super Tuesday. Nightline's Cynthia McFadden will spend tomorrow with the candidate for a "day in the life" story which will air tomorrow night.

An ABC spokesperson tells TVNewser Friday's 20/20 has been booked for some time. The show has an exclusive interview with the parents of Amanda Knox, the American student accused of murdering her British roommate in Italy in November.