lost its NBC affiliation in January 2002 due to a dispute between Young and the network), Young Broadcasting put KCAL up for sale in 2002. The station was purchased by CBS, then a subsidiary of Viacom, on February 14, 2002; the deal was finalized on June 1, 2002. KCAL's operations were merged with those of KCBS-TV, and channel 9 moved from its longtime headquarters at the Viacom-owned Paramount Studios on Melrose Avenue in Hollywood to CBS Columbia Square, located north of the studio lot; the Melrose Avenue facility was subsequently occupied by then-sister station KRTH (which had previously been based out of the Columbia Square facility), and is currently used by the Paramount studio tour. The sale reunited the station with fellow former RKO General property KRTH-FM, which CBS acquired in 1997. The properties were split again when CBS spun off its radio division to Entercom (now Audacy, Inc.) in 2017. When CBS/Viacom bought KCAL-TV, broadcasting industry observers speculated that UPN's programming would move to KCAL from KCOP-TV. KCOP's previous owners, Chris-Craft Industries, had co-founded UPN with Viacom in 1995, and owned 50% of the network before selling its stake in UPN to Viacom in 2000. Fox Television Stations purchased KCOP and most of Chris-Craft's UPN stations in 2001. However, CBS continued to operate channel 9 as an independent station, as Fox renewed its affiliation agreement for its UPN affiliates; it is widely believed that Fox used KCOP as leverage to keep UPN on Fox-owned stations in New York City (WWOR-TV, KCAL's former sister station) and Chicago (WPWR-TV), threatening to drop the network in those markets should Viacom move the UPN affiliation in Los Angeles to KCAL. This issue became moot with the January 2006 announcement of the merger of UPN and The WB into The CW Television Network. The new network launched on September 18, 2006, with former WB affiliate KTLA as its Los Angeles outlet, due to an affiliation agreement with owner Tribune Broadcasting that resulted in 16 of Tribune's WB affiliates joining the network. KCAL-TV remains an independent station, and is currently one of five such stations owned by CBS (the others are KTXA in Dallas–Fort Worth, WLNY-TV in New York City, WSBK-TV in Boston, and WBFS-TV in Miami–Fort Lauderdale). On April 21, 2007, KCBS-TV and KCAL-TV moved from Columbia Square to an all-digital facility at the CBS Studio Center in Studio City. The move allowed both