The show had been on hiatus since September because of MBC's general strike. The good news is, they will be back to film this week, 7 weeks after it stopped. Unfortunately, there's still no word about when it will air, as this week's 'Infinity Challenge' will not air.
This may mean other variety shows might start coming back as well. However, dramas have recently started being cancelled due to the strike and there is currently no word on how the MBC general strike is going.