If we could grade The Andy Griffith Show, we'd give it a big "A," for being one of the best classic TV shows of the 1960s. However, we're not in charge of the grading—that was Andy Griffith's job.

And even though he was the face of the series, according to a 1965 interview with the El Paso Herald-Post, Griffith would've graded his series a little lower than the average viewer.

According to the interview, Griffith used to grade the scripts that came across his desk. George Lindsey, who played Goober, would attend script conferences once his role expanded from just a small part to a full-time Mayberry citizen.

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"If a suggestion is wrong for the show, Andy grades it 'F,'" Lindsey said. "If he turns it down, he puts a 'C' on it. But if it's a good suggestion, you get an 'A.'"

So, how did Lindsey rate in Griffith's eyes? Maybe an A+ in friendship, but according to Lindsey, his scriptwriting would’ve received a failing grade. And he’d know—Lindsey was a real teacher himself before pursuing acting.

"Well, one day I made seven 'F's," Lindsey said. "But all in all, I'd say I'm about a straight 'C' script man."

Lindsey said Goober was starting to carry the storyline, which was a big difference from the earlier seasons. He started out as a small character role but became fully integrated into Mayberry's social life... and the fans loved him.

Despite receiving a bad grade from Griffith, the two stars were close, and Lindsey considered Griffith to be one of his heroes and friends.

"The opportunity to play with Andy is the greatest thing that ever happened to me," Lindsey said. "I want to stay with The Andy Griffith Show, I have no other plans now."

Not only was he a big fan of Griffith, but little Ronny Howard was also on his list of high-rated (or high-graded) actors.

"Ronny has been acting since he was 5," Lindsey said. "He's a real pro. I feel sometimes like I'm the child, and he's the adult."

We know Griffith was doing the grading, but if it were Lindsey, we have a feeling he'd give his Andy Griffith Show experience an A+.