Sure, it might look like Lost is taking a major hit in the ratings department when you look at... you know, the ratings. But it turns out that might just be true for Nielsen's weekly ratings.It turns out that a large number of Lost fans are recording the episode to watch later in the week. In fact, Lost picks up more than 2-million viewers when you when you look at ratings over a 7-day period, rather than just the overnight ratings. That's a bigger boost than almost any other show gets from time-shifted viewers.
Heroes, The Office, 24, and One Tree Hill also get significant ratings boosts when you look at the live plus 7 day ratings.
Of course, if roughly half of the people watching those shows on a PVR are skipping the commercials, it's not exactly clear what good those ratings bumps are.
Nielsen Media Research 
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