the HOT ListWashington Beat NAB States Its Case For Erasing Main Studio Rule By RBR-TVBR - July 5, 2017 1 Facebook Twitter WhatsApp Linkedin Email The FCC has received a bounty of comments regarding its proposal to do away with the main studio rule. Leading the way was the NAB, which had this to say: Please Login to view this premium content. (Not a member? Join Today!)