FILE - The symbol for Comcast appears on a screen at the Nasdaq MarketSite, on Oct. 1, 2019 in New York.

Comcast will spin off many of NBCUniversal's cable television networks, including USA Network, CNBC and MSNBC, into a separate public company.

The shift, which comes as more and more people opt for streaming services over traditional cable, was telegraphed by the company when it released its most recent earnings last month.