    Sentence 1: ABC hought 20 acres of  and in Hollwood in 1949 that would  become what studio?    Sentence 2 ABC's other ownedand  operated stations launched over the  course of the next 13 months: WENR-  TV in Chicago signed on the air on  September IZ, while WXYZTV in  Detroit went on the air on Octoher 9,  To4s.