Night after King of the Ring 1998 where Austin won the title right back from Kane. To kick off the show, Vince has the ring set up with the red carpet, and the belt in a case in the center of the ring, ready for a big ceremony for Kane. Austin interupts, goes into a speal about how he got screwed, and asked Kane "Will you give me the rematch tonight?" as Paul Bearer and Vince are shaking their heads in a comically furious manner, Kane does a huge nod and the crowd went nuts.
Jericho's debut in August 1999. Don't remember anything else from that Raw, but that moment was enough.