ABC is pushing the return of their “Lost” replacement, “FlashForward”, to March 18th instead of March 4th. The show will air its remaining episodes of its first season, including a two-hour return and a two-hour finale on May 27th.
The reason for the push is logistical- this change in date moves the show out of the way of the “American Idol” juggernaut that begins March 4th.
[Source] THR