Telemundo had bought from Southwest Sports Television for $65 million on June 27. The integration of the Telemundo O&Os into NBC Television Stations caused KXTX and KXAS to become sister stations for the second time, although now under joint ownership as the third television station duopoly in the Dallas–Fort Worth market (after CBS owned-and-operated station KTVT and then-UPN affiliate KTXA (channel 21, now an independent station), and Univision owned-and-operated station KUVN (channel 23) and KSTR-TV (channel 49), the latter of which became a charter affiliate of TeleFutura on January 14, 2002). As a byproduct of the purchase, NBC converted KXTX—which subsequently integrated its operations into KXAS's Broadcast Hill facilities—into a Telemundo owned-and-operated station on January 1, 2002, taking over the local affiliation rights from KFWD (channel 52, now a SonLife Broadcasting Network affiliate), which had been affiliated with the network since its sign-on in September 1988. KXAS-TV launched a digital subchannel on virtual channel 5.2 in February 2005, which originally served as a charter affiliate of NBC Weather Plus (known as "NBC 5 Weather Plus"), a co-owned 24-hour weather-focused network featuring a mix of local and national current weather observations and forecasts as well as pre-recorded local weather updates conducted by the station's meteorologists. On December 23, 2008, three weeks after the network ceased operations on December 1, the subchannel was reformatted as part of the network's successor service NBC Plus, an automated service featuring local weather information powered using the Weather Plus graphics platform, alongside audio from NOAA Weather Radio station KEC55 in Fort Worth, and alternately from KEC56 in Dallas. On January 1, 2009, KXAS launched a tertiary subchannel on virtual channel 5.3, which served as a charter over-the-air affiliate of Universal Sports. Universal Sports converted to a cable- and satellite-exclusive service on December 31, 2011, dropping its over-the-air subchannel affiliations and resulting in KXAS removing the 5.3 subchannel from its signal. The station would later re-activate the subchannel as an affiliate of LX in May 2020. KXAS-TV shut down its analog signal, over VHF channel 5, on June 12, 2009, as part of the federally mandated transition from analog to digital television. The station's digital signal remained on its transition period UHF channel 41, using PSIP to display KXAS-TV's virtual channel as 5 on digital television receivers. Through its participation as a SAFER Act "nightlight" broadcaster, KXAS kept its analog signal on the air starting with a