FWIW, just came across an episode of Barker TPIR on the Roku Channel that had a very familiar contestant that also appeared on Press Your Luck:
If you remember Beverlie Peters (she would appear in one of the rotating opening contestant segments that went cross-eyed after hitting a Big Bucks square.
She came on down as contestant #9, played game 6, and made it to the showcase in 1982, prior to PYL.