An NBC News tape of an interview with convicted child sex offender Jerry Sandusky may become part of the basis for an appeal, reports Reuters.

His attorneys had sought a mistrial before his conviction on the grounds that prosecutors showed jurors an inaccurate version of the interview, the story notes.

NBC News turned in three versions of the interview, which featured Bob Costas interviewing Sandusky. The interview aired last November on various NBC shows, the piece notes.

The version broadcast on "Today" contained an error, making it appear that Sandusky was repeating himself in an answer about whether he was attracted to young boys, the story says. His lawyers contended that repetition made it sound as if he was stonewalling.

"It wasn’t noticed by (NBC News), it wasn’t noticed by us, but it became obvious when it played in court," Nils Frederiksen, a spokesman for the Pennsylvania attorney general, said Sunday, the story notes.

An NBC News representative confirmed the account, the piece adds.

The report notes: “On Friday, a jury in Bellefonte, Pennsylvania, convicted Sandusky, a former Penn State assistant football coach, of 45 counts of child sex abuse and child endangerment. Sandusky, 68, is expected to be sentenced to more than 400 years in prison.”