Accused Penn State pedophile Jerry Sandusky came off a lot creepier in that exclusive sitdown with NBC last November than anyone knew, but the Peacock Network oddly chose not to air what sounds a lot like an admission of guilt -- and now prosecutors want the whole transcript.

"I didn't go around seeking out every young person for sexual needs that I've helped," Sandusky told Costas in footage that never made the November airing.

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The disturbing answer first came to light when NBC's "Today" show aired previously unseen transcripts last Tuesday. That prompted prosecutors from the Pennsylvania attorney general’s office to contact NBC lawyers on Friday to request that the network turn over and authenticate the entire transcript from the interview that was used to tape the segment that aired on the news program, “Rock Center with Brian Williams.”

The unaired segment includes a back-and-forth between Costas and Sandusky about his work with young people through his charity for troubled kids, the Second Mile.

"I'm a very passionate person in terms of trying to make a difference in the lives of some young people," Sandusky said. “I worked very hard to try to connect with them. To make them feel good about themselves. To be something significant in their lives. Maybe this gets misinterpreted, has gotten depending on. … I know a lot of young people where it hasn't. I have worked with many, many young people where there has been no misinterpretation of my actions and I have made a very significant difference in their lives.”

Costas then challenged Joe Paterno's one-time defensive coordinator, saying: "But isn't what you're just describing the classic MO of many pedophiles? And that is that they gain the trust of young people, they don't necessarily abuse every young person. There were hundreds, if not thousands, of young boys you came into contact with, but there are allegations that at least eight of them were victimized. Many people believe there are more to come.”

“So it's entirely possible that you could've helped young boy A in some way that was not objectionable while horribly taking advantage of young boy B, C, D and E. Isn't that possible?” Costas asked Sandusky during the interview.

Sandusky gave an unusual reply.

"Well -- you might think that. I don't know. In terms of -- my relationship with so many, many young people. I would -- I would guess that there are many young people who would come forward. Many more young people who would come forward and say that my methods and -- and what I had done for them made a very positive impact on their life.”

“And I didn't go around seeking out every young person for sexual needs that I've helped. There are many that I didn't have -- I hardly had any contact with who I have helped in many, many ways," he added.

The comments could prove damning to Sandusky, who is expected to take the stand this week, even if they weren't deemed newsworthy by the network.

“There were a lot of compelling comments in the original interview, but we did not have time to include them all,” an executive at NBC news, who asked that her identity be withheld, told FoxNews.com.