New Delhi, July 31 -- RENTON - Sam Darnold arrived at Seattle Seahawks training camp Thursday wearing a Super Bowl ring and, for the first time in the show's 21-year history, an HBO film crew waiting on the other side of the door.

Hard Knocks, now in its 21st season, has never featured a defending Super Bowl champion. When the series premiere airs August 4 at 9 PM ET on HBO and Max, the Seahawks become the first title-defense team in the show's history to open its building to the cameras. Production is filming at the Virginia Mason Athletic Center in Renton, with new episodes dropping each Tuesday through September 1.

Darnold, who quarterbacked Seattle to Super Bowl LX in February, is at the center of it.

"No one's really changed," Dar...