ABC announced today that Lost’s two-hour final episode will air at 9 p.m. on Sunday, May 23 (following another recap special at 8, obviously). The network probably would’ve aired it in its regular time slot on Tuesday, May 25 if that weren’t also the night of the first half of American Idol’s season finale, on which Simon is expected to reveal that he, too, is the smoke monster. [Live Feed/HR]