Owned-and-operated stations used to be common in the days of network radio, however beginning in the 1980s, these radio networks began to be broken up. For all intents and purposes, NBC no longer exists as a radio network, beyond brand licensing and distribution agreements with Dial Global for NBC Sports Radio content. ABC was previously non-existent as well, until 2015 when it relaunched an in-house radio network after Cumulus Media Networks, the then-owners and distributors of the ABC News Radio brand, replaced the ABC News brand with Westwood One News (via CNN). CBS's radio stations are now a separate company (CBS Radio) from its broadcast service. In the late 1990s, the "original" CBS Radio Network was reassigned to then-corporate sibling Westwood One via a series of complicated transactions, absorbing the former Mutual and the original NBC Radio (which General Electric spun off in 1987 after its merger with RCA) in the process. Westwood One was spun off in 2007 and merged into Dial Global in 2011, with the new company taking on the Westwood One name. Today, CBS maintains separate distribution agreements between Westwood One (for CBS Radio News and its sports play-by-play packages, most notably the NFL and the NCAA) and Cumulus Media (for CBS Sports Radio).