Google has added a hyperlink to the main brand site when Google displays the knowledge graph in the search results. If you search for brands, such as [pbs], [bbc], [fox news], [yahoo] and so on, next ...
As you can see from the picture above (click on it to enlarge), Google has added the URL of the site mentioned in the knowledge graph, when the query is navigational. So searching for [fox news], [pbs ...
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