In 1996, Jones Media Networks started the cable network GAC (Great American Country). Up against stiff competition from CMT, GAC failed to capture market share and was later sold to The E.W. Scripps Company, owners of Home & Garden Television and Food Network. Earlier the company had launched the cable network Mind Extension University, which mainly featured adult education programs, and later shifted to a technology focus as Knowledge TV before it was discontinued around 2000. Jones Computer Network was offered as a 12-hour channel in 1994. The channel featured in-house productions as well as programming from syndicated CNET TV and Turner Broadcasting. JCN was sold to Vulcan Ventures to eventually create channel space on cable for their network, TechTV precursor Ziff-Davis Television, which removed the Jones Media Networks produced shows and added content from Ziff-Davis' magazine staff, including John C. Dvorak.