Advertising rates on network television and for TV show viewing online will soon be the same, "so we won't care where you watch," CBS Chief Executive Leslie Moonves told CNBC on Wednesday.

Moonves—fresh from his network's win over Time Warner Cable in their contract dispute—predicted in a "Squawk Box" interview that ad parity could come in three to five years. "If you go on a college campus today, most of the kids are watching their shows online."