But as another episode of Hard Knocks: Training Camp With The New York Jets hits the flat screen thisWednesday night, the third-year tight end expects viewers to continue to get an honest, fly-on-the-wall view of what actually goes on in the meeting rooms, on the practice field and in the camp's surroundings.
"I'm not gonna throw any names out there," Keller said. "It seems like a couple guys are putting on a little bit for the camera. But HBO promised us that anybody that's putting on for the cameras like that will not be put on the show."
Channing Crowder of the Miami Dolphins recently told the Palm Beach Post that Jason Taylor, a former Dolphin who is now with the Jets, will "not be himself" and "perform for the cameras." However, Jets Head Coach Rex Ryan said he hasn't seen anyone hamming it up for the cameras over the past few weeks.
"Probably Dennis Thurman," Ryan joked about his defensive backs coach. "No, I'm only kidding. No, I haven't noticed that. We haven't seen the off-the-field things. Maybe there will be some blatant ones."
HBO will have its hands full trying to fit so many entertaining personalities into hour-long shows with available cast members like Ryan, Kris Jenkins, Antonio Cromartie, Bart Scott -- who Keller referred to as "loud-mouth Bart" -- and of course, Nick Mangold.
"What kind of show would it be without me?" the Jets center said.
TV star or not, Mangold has been watching.
"It's kind of like sausage," he said. "You don't want to see it being made, but you love eating it."