WIWN

In August 2009, the FCC conditionally approved the move to channel 5 after the build-out of the new transmitter, which was approved for the traditional tower site on the northeast side of Milwaukee. According to FCC mapping, the station leases space on the MPTV Tower to broadcast the station, with the signal directed towards the west and north to avoid interference with the stations mentioned below. The channel 5 construction permit was accepted by the FCC on October 16, 2009.

The petition to move was contested by Weigel Broadcasting, WLFM-LP (now WRME-LP) in Chicago (a station using the analog channel 6 audio overlap quirk on 87.7 FM to broadcast a smooth jazz radio station with video imagery; it now by coincidence carries a Weigel-programmed oldies format spun off from their MeTV network), as well as by Grand Valley State University in Allendale, Michigan, near Grand Rapids, which has its Kalamazoo PBS member station WGVK based on digital channel 5, mapping via PSIP to channel 52. Weigel objected mainly on concerns of abandonment by WWAZ of serving Fond du Lac and the surrounding area to become a full-time Milwaukee station (creating a possible competitor to Weigel's two full-power and two low-power stations in the area), while Grand Valley's and WLFM's concerns were with interference from the more southern signal within Chicago and across Lake Michigan.

The application was approved mainly due to ABC asking for the FCC to allow them to move the main digital signal of its Chicago owned-and-operated station WLS-TV from VHF channel 7 to UHF channel 44 due to signal reception problems in their market, a move supported by Pappas and approved by the FCC in October 2009, which was carried out at the beginning of 2010. Pappas planned to address the abandonment concerns of the rural audience by building two low-power digital translator stations in areas formerly served by the WWAZ analog signal, the first on channel 15 from Ripon which has reception in the city of Fond du Lac, and the second on channel 30, broadcasting from Columbus within the northeast reaches of the Madison market.[7] However the Ripon and Columbus applications have since disappeared from the FCC database, leaving solely the entry for the Milwaukee tower site.

On August 12, 2012, it was reported that the station had begun to broadcast from the MPTV Tower, airing programming from WeatherNation TV; it also changed its call letters to WIWN, which became official one day later on August 13.[8] The network was carried fully in 1080i high definition, with forced framing to widescreen for standard definition viewers via the AFD #10 code.[9] DirecTV picked up the station shortly after it came to air for their southeastern Wisconsin lineup under must-carry requested from Pappas.

The station acquired its first cable carriage in April 2014, when Charter added the stations to their southeastern Wisconsin systems as part of Charter's new retransmission consent agreement for Pappas stations elsewhere in the country, finally bringing the station carriage in its city of license of Fond du Lac. It airs on channel 22 on those Charter systems, along with channel 616 in high definition. Time Warner Cable added the station for their area systems on December 5, 2014 on standard channel 68 and in high definition on channel 1068.[10]

On June 16, 2014, Pappas Telecasting and their bankruptcy trustees agreed to a purchase of the station for $1.8 million by Caballero Acquisition LLC, a station group mainly made up of low-power television stations in California and Texas formerly owned by Viacom which carry Viacom's MTV Tres network, most of which were purchased mainly to acquire the assets of former competitor Mas Musica, a network owned by a past company of those who own Caballero. It entered into a local marketing agreement to operate the station until the completion of the sale.[11] Upon the start of the temporary LMA, the station began to carry a secondary affiliation with the OnTV4U paid programming network, pre-empting WeatherNation programming. The sale was completed on September 24.[12]

As of November 10, 2014, all WeatherNation programming was removed from the station's schedule, and outside of a daily 9 a.m. slot to carry required E/I programming, ran an all-infomercial format mainly from OnTV4U through the entire day.

On December 1, 2014, the station began to air programming from the religious Sonlife Broadcasting Network full-time, outside of a late night hour of paid programming. The same day, a second subchannel carrying paid programming was also added; eventually this channel picked up the shopping network Evine Live as a permanent affiliation. OnTV4U has continually moved subchannels since Cabellero's acquisition and is currently on WIWN-DT3. In late November 2015, a fourth subchannel carrying the bilingual LATV network was added, along with a downscaling of the main channel to 720p, which is Sonlife's default transmission format. Later, home shopping programming from the Liquidation Channel (now Shop LC) was also added to a 68.7 subchannel, along with an additional OnTV4U channel and two additional subchannels up for lease to interested parties. 68.6 was given over to QVC's over-the-air feed at the end of 2015; this is despite that network already being carried over-the-air in the market by WPXE-TV on their DT5 subchannel as part of Ion Television's national agreement with the network. The QVC feed on 68.6 was joined by QVC's "Plus" network on 68.5 in July 2016.

Charter added WIWN-DT4/LATV to the provider's Latino/Hispanic tier on May 4, 2016 over channel 201 on their area systems.

On April 13, 2017, the FCC announced the results of the 2016 spectrum auction; WIWN did not sell any spectrum (though this was expected as WIWN already utilizes a low-VHF channel).

On May 1, 2017, WIWN moved Sonlife (who had acquired their own carriage independently nationwide on Spectrum and AT&T U-Verse) to channel 68.8, which is not carried on cable, temporarily moving OnTV4U to the main channel, with Shop LC airing in duplicate on channels 68.3 and 68.7. The main signal picked up a new affiliation on June 22, 2017, when WIWN assumed an affiliation with the classic television network Cozi TV, which had been carried on WTMJ-DT3 until January 2017, and moved to WTSJ-LD3 in the interim six months. This allowed Cozi to finally be carried on Charter's legacy systems in the region for the first time, as that provider never has carried WTMJ's subchannels, nor any of WTSJ's channels. WTSJ-LD3 continued to carry Cozi for one month further before its replacement with Jewelry Television. As with Sonlife, one hour of the Cozi schedule late weeknights and several hours on weekend mornings remain pre-empted for paid programming, and Baywatch is unseen on WIWN.

On September 1, 2017, WIWN replaced Evine with Light TV on the DT2 subchannel. On February 24, 2018, OnTV4U permanently left WIWN's airwaves with the launch of Tegna's Quest on 68.3, though it remains in Milwaukee through tentative sister station WMKE-CD (channel 21), which was acquired by CNZ in 2018; OnTV4U replaced Rev'n on WMKE-CD.[13] On May 1, 2018, the station picked up getTV for 68.4 (formerly carried by WVTV-DT2 before it switched to the former WCGV schedule after that station turned in their spectrum on January 8, 2018); LATV moved to WIWN-DT7, with ShopLC moving off the station. Spectrum dropped carriage of WIWN-DT4 just after the conversion to GetTV. At the start of November 2018, the station picked up Tribune Media's This TV for their fifth subchannel (the network is owned by the same company which formerly owned WITI, but that station is in a channel share with WVCY-TV which precludes additional subchannels).

In July 2019, the station received permission from the FCC to increase their power from its previous 9 kW to 35 kW due to complaint of over-the-air viewers unable to receive the station, as the low VHF frequencies have proven troublesome for reception in the digital age. CNZ/Milwaukee Media has also put forward an application for a permanent increase to 49 kW.[14]

The station's digital signal is multiplexed: