Shares of Roku Inc (NASDAQ: ROKU) fell more than 6% on Friday after the company began notifying customers that several Fox Corp (NASDAQ: FOXA) channels won’t be available on its app just a couple days before the Super Bowl airs on Fox. Roku said in an email to customers that all of the standalone Fox channels would no longer be available on Roku apps starting Friday. The move is part of a carriage dispute between the two companies as the distribution agreement that has put Fox channels on Roku apps for years approaches expiration with no agreement yet reached on an extension.