anchor/reporter/monthly public affairs show host (1975–1978; now at KDFW/Dallas–Fort Worth) Carl Zimmermann (retired in 1986, died in April 2014) – longest serving broadcaster in Milwaukee history Technical information Subchannels The station's digital signal is multiplexed: In May 2012, the station activated its second audio program feed three years before FCC requirements for network-provided audio description went into effect for the Milwaukee market, which was done for all Local TV stations at the master control level. The station carries all Fox programming available with Descriptive Video Service audio, along with Spanish-language audio broadcasts of Fox Sports telecasts. Despite Tribune's purchase of the station, it never carried This TV; Tribune had assumed Weigel Broadcasting's operational responsibilities for that network on November 1, 2013 (the network was carried on WYTU-LD2 from January until September 2018 after several years on WMLW-DT3, before WIWN agreed to carry the network for their fifth subchannel in November 2018 and its sale to Entertainment Studios in 2020). Additionally, Court TV's carriage with Scripps' WTMJ-TV as under sister ownership meant WITI would not carry that network despite Tribune/Nexstar's deal with that network to launch carriage at the end of October 2019. Fox Television Stations announced before its debut that its stations would carry the streaming service Fox Weather as a subchannel in their local markets at the start of 2022, with WITI doing so on its fourth subchannel in February 2022. A third subchannel for HSN's over-the-air service was added before the end of 2021 for antenna viewers, with no pay-TV carriage pursued by either FTS or HSN. It is duplicative of the HSN feed carried by WPXE-DT8, which also transmits from WITI's tower. Analog-to-digital conversion WITI shut down its analog signal, over VHF channel 6, on June 12, 2009, the official date in which full-power television stations in the United States transitioned from analog to digital broadcasts under federal mandate. The station's digital signal continued to broadcast on its pre-transition UHF channel 33. Through the use of PSIP, digital television receivers display the station's virtual channel as its former VHF analog channel 6. As part of the SAFER Act, WITI kept its analog signal on the air until June 25 to inform viewers of the digital television transition through a loop of English and Spanish public service announcements from the National Association of Broadcasters, although this loop was interrupted several times during the period to run severe weather