CNN Headline News used to be a channel which, as the name suggests, presented the headlines of news. Later on it changed its focus to covering crime stories, which is why it changed its name to HLN. But I'm interested in CNN Headline News in its original form.
From what I remember, in the old days, the network didn't just present news headlines. Instead it alternated: for some short period of time it would show headlines presented by CNN anchors, and then for an equal period of time it would air a show called "Comcast Newsmakers", a TV show produced by the cable company Comcast which interviewed newsmakers like politicians. These two things alternated pretty frequently, like every half hour or even shorter.
So my question is, what exactly was going with Comcast Newsmakers? Why did it alternate with regular programming so frequently? Did CNN Headline News sell half its airtime to local affiliates or something?
Note: I apologize if this is off-topic; the on-topic page said "TV news" is off-topic, but I didn't know whether that was referring to news about TV or TV news shows.