Apple's "Designed by Apple" TV ad isn't scoring well with test audiences, says consulting firm Ace Metrix. The spot scored just 489 on an Ace Metrix scale, the lowest among 26 Apple ads aired during the last year, and below even a 542-point industry average. In the past, some Apple campaigns have scored over 700. Each Ace Metrix survey is based on at least 500 TV viewers.
