Liberty’s Chairman Quits Cablevision Board

John Malone, chairman of Liberty Media Corp., resigned from the board of Cablevision Systems Corp. to avoid conflicts that might arise because both companies own television programming assets.

Malone resigned Monday, the company said in a filing with the Securities and Exchange Commission.

Malone, who joined the board while Cablevision Chairman Charles Dolan battled to keep alive the Voom satellite TV service, is departing two months after the unit halted service. Malone in March said he joined Cablevision’s board because of his long friendship with Dolan.