Comcast Corp is planning to spin off a large part of its NBCUniversal’s cable TV channels into a separate publicly traded company (SpinCo).

Comcast is moving forward with plans to spin off its NBCUniversal cable television networks including MSNBC and CNBC, sources say, shedding a once core part of the business that has been a casualty of the streaming video revolution.

Comcast may be proceeding with a transaction as a signal to the rest of the media industry that consolidation is necessary.