The channel originally launched on Monday May 11, 1998, on cable systems in Las Vegas, Detroit, parts of Georgia near Atlanta and parts of Maine. Vulcan Ventures first invested in ZDTV, a network that supplemented content from Ziff-Davis' computer and technology based print publications (at the time including PC Magazine, MacWEEK, and eWEEK), in November 1998, acquiring a one-third interest from Ziff-Davis. In November 1999, Vulcan purchased the remaining two-thirds in a transaction that was completed on January 21, 2000. The deal (which permitted Vulcan to temporarily continue using the "ZD" initials and "red diamond" logo) was worth approximately $204.8 million.