Sumner Redstone, who continues to play grandpa to both CBS and Viacom even after the companies went their separate ways, has a few remarks for one of his offspring. Actually, just one remark: You fucked up.

Okay. “Made a mistake” was what Redstone actually said about Les Moonves, the smiling operator behind CBS, who bought the rights to broadcast an event from Elite XC, the mixed martial arts sport that promises to be violent. That bloodsport is normally shielded from broadcast and aired only on cable, but Moonves is after cheap ratings for the tiffany network. — though that doesn’t mean Redstone, who has as much at stake in seeing CBS succeed, is happy about it.

The show is too violent for his taste, he told the audience at the Milken Global Conference in Los Angeles. “You have to know the difference between your bottom line and your social responsibility. It’s probably good for the [CBS] bottom line but I don’t think it’s socially responsible.”

Them’s be fightin’ words! Especially since Viacom announced it was partnering with other media companies to launch a new premium channel that not only will compete with CBS’s Showtime, but keep Viacom’s movie studio from sending its films there. And yet still some think there’s hope for reconciliation.