The split would cleave off some of NBCUniversal’s best-known brands, which face the same cord-cutting challenges as many other major cable channels.

Comcast’s corporate reorganization means that there will soon be two television networks with “NBC” in their name — CNBC and MSNBC — that will no longer have any corporate connection to NBC News. How that affects viewers of those networks,

The new publicly traded company is set to debut next year, with a bundle of channels that also includes Oxygen, E! and Syfy.