from the former building, at the intersection of Griffin and San Jacinto). In 1968, the station's Cedar Hill transmitter site was struck by a helicopter, causing substantial damage to the tower. Times Mirror and Argyle ownership On September 22, 1969, the Los Angeles-based Times Mirror Company announced it would purchase the Times Herald and the KRLD radio and television from the Times Herald Printing Co. for $91 million in cash and stock. Although recently implemented FCC cross-ownership rules prohibited media companies from owning newspapers and full-power broadcast television and radio outlets in the same market, Times Mirror received approval to maintain the existing combination of the Times Herald and KRLD-TV under a cross-ownership waiver. However, to comply with FCC rules of the time that prohibited a single company from owning full-power broadcast television and radio outlets in the same market, Times Mirror sold KRLD-AM-FM to KRLD Corp. (owned principally by Philip R. Jonsson, Kenneth A. Jonsson and George V. Charlton, the sons and daughter of Dallas mayor and former Texas Instruments chairman J. Erik Jonsson) for $6.75 million. The transaction was approved by the FCC on May 15, 1970, and was finalized 1½ months later on July 1. The purchase marked Times Mirror's re-entry into broadcasting (it owned KTTV in Los Angeles, a present-day sister station of KDFW, from its sign-on in 1949 until 1963, when it sold that station to Metromedia for $10.5 million in cash and promissory notes), resulting in the creation of Times Mirror Broadcasting. In order to comply with an FCC rule in effect at the time that prohibited separately owned radio and television stations in the same market from sharing the same base call letters, as KRLD Corp. was allowed to keep the KRLD call letters for its new radio properties, the station's call letters were changed to KDFW-TV – in partial reference to its service area of Dallas and Fort Worth – on July 2. (The "-TV" suffix was dropped from the KDFW callsign in July 1998; the KRLD-TV calls were later used by present-day CW affiliate KDAF [channel 33] from 1984 to 1986, when Metromedia co-owned that station and KRLD radio, the latter of which was also co-owned with present-day CBS owned-and-operated station KTVT [channel 11] from 1999 until CBS Corporation sold its radio division to Entercom in 2017.) In June 1986, the Times Mirror Company sold the Times Herald to Woodbury, New