premise: Studio One is an American radio–television anthology drama series, created in 1947 by Canadian director Fletcher Markle, who came to CBS from the CBC. It aired under several variant titles: Studio One Summer Theatre, Studio One in Hollywood, Summer Theatre, Westinghouse Studio One and Westinghouse Summer Theatre.
hypothesis: Fletcher Markle came to the Columbia Broadcasting System from the Canadian Broadcasting Corporation.
reason: I used the entire names of the broadcasting company instead of the acronyms.  The AI doesn't know those like a lot of human beings do.