The morning after the Walt Disney Co. and the NFL formally announced their blockbuster equity-for-assets swap, Bob Iger told investors the deal may well be the biggest thing to hit ESPN in nearly 40 years.

The sports media behemoth ESPN will take control of the NFL channels Red Zone and NFL Network in a deal that gives the league an equity stake.

ESPN’s much-discussed streaming service finally has its launch date. The network announced Wednesday that its direct-to-consumer service and enhanced app will debut Aug. 21. The announcement coincided with Disney’s quarterly earning report.