Due to World Series baseball taking place on Fox next week, WWE SmackDown will be moved over for only one week to FS1. Last Wednesday, baseball almost moved AEW television to truTV.
As announced by @MichaelCole on @WWE Friday Night SmackDown, next week we will come to you live from @FS1 due to the @MLBONFOX World Series.
— WWE on FOX (@WWEonFOX) October 19, 2019
This is a move that WWE was expecting for a while and upon announcing the deal with Fox it was even said the show would only air 51 weeks a year on the network.