Ziff-Davis did not renew the copyrights of Radio & Television News
so these issues are in the public domain.
(Just in case: Copyright © 1949 Poptronix, Inc.; used by permission.)
Radio News was changed to Radio & Television News in July 1948. It was changed to Radio & TV News in May 1957. The publisher, Ziff Davis, started Popular Electronics magazine in October 1954.
