TV Guide
TV Guide is a bi-weekly American magazine that provides television program listings information as well as television-related news, celebrity interviews and gossip, film reviews, crossword puzzles, and, in some issues, horoscopes. The print magazine is owned by NTVB Media, while its digital properties are controlled by the CBS Interactive division of CBS Corporation; the "TV Guide" name and associated editorial content from the publication are licensed by CBS Interactive for use on the website and mobile app through an agreement with the magazine's parent subsidiary TVGM Holdings, Inc.
GuideWorks
Prior to the formation of the joint venture, Gemstar-TV Guide International, Inc developed and marketed the navigation software to Comcast and other cable operators. During this period, the name i-Guide became associated with the products, which gained a reputation for strong promotion of advertising similar to the ads that appear on web pages today. This advertising aspect underwent significant deemphasis after the formation of the GuideWorks joint venture in 2004.