Superman & Batman Magazine was launched in 1993 as a quarterly publication based on the DC Animated Universe as seen in the then current Batman: The Animated Series.
Kyle Rayner had his first appearance in the DC Animated Universe in Issue #7, published in the Winter of 1995. The Green Lantern was featured in a 2-page pull-out poster spread, a "Hero File" and his own 6-page comic written by Ron Marz. Additional background information was also provided for Major Force, Parallax, The Green Lantern Corps and The Guardians of the Universe.
Kyle Rayner was next seen in the DC Animated Universe in a 1999 episode of Superman: The Animated Series titled "In Brightest Day..." where he was given Hal Jordan's origin story.