Gayle King and Charles Barkley’s new CNN show, King Charles, suffered its worst ratings yet this week, RadarOnline.com can report. In a surprising development to come just weeks after King Charles launched on CNN on November 29, the new news program co-hosted by King and Barkley barely brought in more than 400,000 total viewers during its latest episode. According to numbers shared by Nielsen, King Charles’s Wednesday episodeonlybrought in a total of 402,000 viewers. Of the 402,000 viewers who tuned in this week, only 89,000 were of the all-important 25-54 advertising demographic. Other shows …