Eager to keep its edgy late-night block intact, Comedy Central has negotiated two-year contract extensions with its star comedians, Jon Stewart and Stephen Colbert.
Stewart's new deal will keep him on the network and at the helm of the "The Daily Show with Jon Stewart" at least through the middle of 2015. His previous agreement would have expired next summer.
Colbert's new arrangement goes through the end of 2014. Colbert serves as executive producer, writer and host for "The Colbert Report." His previous contract was set to run out at the end of this year.
The two shows have become a bright light in late-night ratings. During the current TV season, both shows on the Viacom Inc. network have expanded their audience in the key demographic of viewers age 18 to 49.