Remember in late 2011 when GSN, for the first time in their history, established different programming on different nights each week, better known as "Block scheduling"? (This type of programming contained blocks that actually consisted of one show for five-hours each night.)
November 2011 primetime schedule (Weekdays 7pm-12am ET; Saturday 6pm-12am ET; Sunday 7pm-12am ET):
Mondays: "Million Dollar Monday" (Million Dollar Password, Power of 10, 1 vs. 100, Who Wants to be a Millionaire? (Philbin) and Deal or No Deal (NBC).
Tuesday: The Newlywed Game (Shepherd)
Thursday: Deal or No Deal (NBC)
Friday: "Flashback Friday" (Match Game, The $25,000 Pyramid, Card Sharks, Family Feud (Dawson), The $100,000 Pyramid)
Saturday: Family Feud (Karn/O'Hurley)
Sunday: Are You Smarter than a 5th Grader?
Shows that broke up block scheduling are Steve Harvey's Family Feud, which contributed to the decrease in "block" size, from five to four hours and eventually four to three hours on weekdays. Originals like American Bible Challenge, Beat the Chefs and The Chase definitely broke the "block" scheduling up, where GSN would not be able to run four or five episodes a night a time of these originals, especially when they were brand new.
The absolute last remaining part of block scheduling can be found on Wednesday, July 30th, 2014, when episodes of Steve Harvey's Family Feud aired from 7-10pm ET on that specific night, and then the 7pm hour repeated in the 10pm hour, part of the original modeling inducted in November 2011.
Here at GSNN, we had a post dedicated to the two-year anniversary of block scheduling. If you look closely, you can see how block scheduling started out as one show, or the same type of shows on one night for five hours, then how the primetime schedule lineup varied and became more loose.
Two things for sure: One, with GSN's broad new lineup of originals, the "block" scheduling (one show for five hours) would not work today and two, the primetime schedule pre-2011, with all the same shows Monday through Friday would definitely not work with hour-long originals, such as The Chase and Skin Wars.