The video feeds of this op were likely transmitted via a drone circling overhead, an AWACS or similar aircraft in Afghanistan and another in the Arabian Sea, and surveillance satellites overhead. The odds that feeds from 79 operators, fed through multiple uplinks, was never seen or recorded simply isn't credulous.
Further, you'll note that Panetta chose his words very carefully. They did not have direct flow of information. That indicates that there were recording of the assault recorded on the flash-memory of helmet-mounted cameras, but these are just one more set of images—along with the three or more sets of photographs of Bin Laden's body—that the "most transparent Administration in history" refuses to show the American people.