The Queen of Christmas is back with a two-hour primetime concert special next month. CBS will present Mariah Carey: Merry Christmas to All! on Tuesday, Dec. 20 from 8:00-10:00 PM, ET/PT). The show will also be available to stream live and on demand on Paramount+. tHE DATE WAS ANNOUNCED ON cbs mORNINGS TODAY. Filmed in New York City