Thanksgiving is approaching tomorrow which means changes for special programming all around the schedule occur.
Starting tonight, Hellevator (8pm ET) and Idiotest (10pm and 10:30pm ET) will air in reruns. Tonight's episode of Hellevator originally aired October 28th (the second episode aired). Tonight's episodes of Idiotest are from September 2015. Please look at the GSN advanced schedules on the right (desktop version only) if you would like to see more on the episode numbers.
On Friday night, The Chase (8pm ET) will also be in reruns this week. The rerun was the Season 4 premiere (1/27/2015). New episodes of Hellevator (December 2nd 8pm ET), Idiotest (December 2nd 10pm ET) and The Chase (December 4th 8pm ET) return next week.
GSN will air holiday marathons of already shown enough Idiotest, Family Feud and Hellevator. Idiotest will run on Thanksgiving from 5pm to 9pm ET. Family Feud (Harvey, of course) will air Friday 10am-8pm ET. Hellevator will air Saturday latenight 12am-3am ET.