The 6-hour grid view is available to registered Zap2it users and requires that you enter the e-mail address and user name you used during the registration process. To view 6-hours of programming on your grid, click on "Set Preferences" at the top of the grid. At the bottom of the "Set Preferences" page check the box next to "Show six hour grid" and click 'Save.' Your grid will then update to show a six hour view.