Comcast is breaking up with NBCU. Why did it ever buy it in the first place?

Today on Decoder , I’m talking with Peter Kafka, who is chief correspondent at Business Insider and host of Channels , a podcast about the media industry. And it’s a big week for the media industry — Comcast just announced that it’s splitting itself up , into the Comcast broadband company and the NBCUniversal entertainment company. That’s after the media giant spun out its cable assets like CNBC and MS.NOW into a new company called Versant earlier this year.