As the headline says: on Tuesday March 30th, ABC will begin airing the remaining episodes of 'Lost' and the relatively new show 'V' on the same night, back-to-back. It's a good choice but there is some question as to whether or not 'Lost' fans will flock to 'V' once their favorite program is done.
Both shows are ensemble dramas, but 'Lost' is very subtle in its science fiction and/or fantasy elements, usually downplaying them in favor of the characters. 'V' has spaceships and lizard-people and the sci-fi is pretty tough to ignore. Even on TV Squad, 'Lost' is categorized as a drama while 'V' is science fiction or fantasy. While the science fiction genre has sometimes gotten a loyal viewership by the mainstream (if such a concept exists), it's usually because they don't realize they're watching science fiction.