Sources say media buying company GroupM, which spends $70 billion annually for clients including Paramount Pictures and Procter & Gamble, has agreed to negotiate upfront prime-time deals on C7 instead of C3.
Sources say media buying company GroupM, which spends $70 billion annually for clients including Paramount Pictures and Procter & Gamble, has agreed to negotiate upfront prime-time deals on C7 instead of C3.