The light border was introduced in 1975. It displayed three sentences by just zooming in or by flipping horizontally; usually the first two disappeared quickly after flipping in, while the third flipped back out; this was changed when Drew Carey took over as host in 2007 (with each individually flipping in and out) and then discontinued for good by the start of the 2009-2010 season. Once all four players got called to Contestant's Row, the light border disappeared by zooming in off screen as the logo zoomed in, and until mid-Season 34, it zoomed out with the logo at the halfway point of the show. All of the light borders seen below are recreations.
From 1975-2007, the light border was chroma keyed through a camera. In 2008, the border graphics were transitioned to digital computer-animated graphics. On rare occasions, the camera panned too far, you can see the light border.