The story on Wednesday about Halo 3 incorrectly listed the agency involved as Tag. The effort was actually via McCann San Francisco, and T.A.G. Universal McCann San Francisco worked with YouTube and
Yahoo to create Halo 3-branded channels.
Also, San Francisco-based digital firm AKQA created the online diorama Web site and advertising banners. While advertising on prime-time shows
was only in 11 markets on Fox and NBC, they were all season premieres with the exception of "Heroes," and the 90-second TV spot is actually a 90-second film, per an agency spokesperson.