Viacom sued Cablevision Systems today an an effort to remove its channels from the cable company’s TV Everywhere digital transmissions. Viacom told the U.S. District Court for the Southern District of New York that Cablevision only has the right to offer services including MTV, Nickelodeon, and Comedy Central on cable TV. “Over the  last few months, we have had limited and unproductive discussions with  Cablevision about licensing iPad rights,” Viacom says. “We remain open to productive discussions, but we cannot wait indefinitely while our networks are  being distributed without permission.”

Cablevision says that its iPad app “falls within our existing cable television licensing agreements with programmers – including Viacom.  It is cable television service on the iPad, which functions as a television, and is delivered securely to our customers in the home on Cablevision’s own proprietary network.”

Viacom filed a similar suit against Time Warner Cable. But yesterday, the companies told the U.S. District Court for the Southern District of New York that they had reached a standstill agreement, putting the case on hold while they try to work out a settlement.