CNN's Brian Stelter, host of Reliable Sources. (YouTube)

CNN's Reliable Sources, hosted by left-wing "media correspondent" Brian Stelter, is not having a good year -- it's average audience has fallen 42% since January.

Between Jan. 6 and Jan. 27, 2019, Reliable Sources averaged 967,000 viewers, according to ShowBuzzDaily broadcast data as reported by John Nolte at Breitbart News.

But for June 16 to July 7, 2019, the data show that Reliable Sources' audience had fallen to an average of 557,000 viewers, an audience about the size of Albuquerque, New Mexico. That audience size is also about half the number of prostitutes in the United States, which is estimated to be 1 million.

CNN's Chief Media Correspondent Brian Stelter. (Photo by David Becker/Getty Images)

A drop from 967,000 viewers to 557,000 viewers is a decline of 42%, and in only six months time.

For comparison, Fox's MediaBuzz, hosted by Howard Kurtz enjoyed an average audience of 1.135 million between June 16 and July 7. Back in January that number was 1.372 million, showing a decline of only 5%.

"If Reliable Sources has lost a whopping 42 percent of its viewers since the beginning of the year, and MediaBuzz has lost only five percent, that tells you the problem is not an overall loss of interest in news about the news media, but a problem with Stelter and his horrible show," said Knowles.