I have no idea what the ‘enhanced version’ is (Director’s Cut? cutting room footage from the ‘real’ G-Day?), but if you blinked and missed G-Day, it will be on at these times (and probably 233 more times over the summer):

Comcast/Charter Sports Southeast (CSS) will re-air an enhanced version of its complete-game broadcast of Georgia’s spring football game held April 5th.

Led by quarterback Matthew Stafford, the Red team defeated the Black team, 17-3, as the Bulldogs concluded the 2008 spring practice season. They will open the 2008 regular season against in-state opponent Georgia Southern on August 30th.

CSS’s re-air schedule for the 2008 Georgia G-Day game is as follows:
Monday – 4/21 – 7:00 PM
Thursday – 4/24 – 9:30 PM
Tuesday – 4/29 – 7:30 PM