Remembering back to 1986 auditions on Wheel of Fortune, if you were from out of the L.A. area, you would call them up and let them know when you will be in the area in the next 18 months. Based on that, they put you on whatever version was scheduled to tape them, if any. (Teens like me had no choice, the nighttime version had no teen weeks then).
My sister made it through auditions in 1989 and was told the same thing. She ended up on the nighttime taped the following August, as that's what was taping at the time. They tell you this on the phone when you call them.