Lieberman, a U.S. senator from Connecticut, visited an Upstate church Sunday.
He told the congregation at Springfield Baptist Church that he supports rating systems for television programs and video games to give parents more information.
He said one game, "Grand Theft Auto: Vice City," rewards players for attacking, beating and killing women. "It's awful," Lieberman said. "If you saw it, you'd be disgusted and outraged."
Reaction to his anti-violence message was mixed.
Chris Anderson, a Furman University junior, said he thinks regulations should be consistent. "Violence in Westerns is just as bad as the violence Marilyn Manson talks about," he said, referring to a shock rock act.
Lieberman is one of nine Democrats running for the nomination. South Carolina's Feb. 3 primary is expected to be pivotal because it's the first in the South.
Information from: The Greenville News