Norfolk at the time was in the top 40...I'm counting that as a major market. ;-)
I do know that WTVZ aired it at 12:00 noon. However, I'm trying to remember if there was a secondary episode, and if it a) aired at 12:30 or b) sometime in the middle of the night.
{does a quick ATGS search} Single episode, 12 noon.
Interestingly enough,
this post lists the top 50 markets that aired MG and
Hollywood Squares in fall 1998. Roughly a third aired MG in overnight hours (16 by my count), while most stations aired HS in an early-evening slot (say, between 4-8 p.m.) A couple aired it after the late local news, some in the daytime, none on overnights.