call letters, WKAR-TV. This was made possible by the All Channels Act of 1961 (requiring all TV sets sold in the United States to receive UHF channels starting in 1964), the Public Broadcasting Act of 1967, and the subsequent development of PBS in 1969. The channel 23 dedication program was simulcast on both channels 10 (WMSB) and 23 (WKAR-TV), after which WMSB went silent and WILX began broadcasting on channel 10 full-time. At approximately 3:36 p.m. on August 21, 1978, a fire broke out at WKAR's transmitter site, knocking the station off the air for the next two months and causing $900,000 (in 1978 dollars) in damage. WKAR-FM also went off the air at about 4 p.m. That station returned to the air by mid-September. While the transmitter was under repair, WJIM-TV (now WLNS) aired some of WKAR's programming, such as Sesame Street. The cause of the fire remains unknown. In 1981, WKAR-TV moved from the Quonset hut it had occupied since the station began operating to the Communication Arts and Sciences Building. The Breslin Student Events Center occupies the former studio location today. By November 14, 2003, MSU Broadcasting Services was cablecasting two community TV channels, KAR2 and KAR3. WKAR-DT began broadcasting on Channel 55 on January 15, 2004. By November 4, 2007, WKAR Life and World network, branded as WKAR World, were added to the digital and cable lineup as .3/KAR2 and .4/KAR3 respectively. On April 6, 2008 WKAR Life became WKAR Create. WKAR-TV shut down its analog signal, over UHF channel 23, on January 13, 2009. The station's digital signal relocated from its pre-transition UHF channel 55, which was among the high band UHF channels (52-69) that were removed from broadcasting use as a result of the transition, to UHF channel 40, using PSIP to display WKAR-TV's virtual channel as 23 on digital television receivers. On June 18, 2010, construction of a new broadcast tower for WKAR-TV and WKAR-FM was approved during a Michigan State University Board of Trustees meeting. The project was completed in August 2011. On September 10, 2012, WKAR-TV began transmission of its digital signal 24/7. On January 11, 2016, WKAR announced that it would partner with WTVS in Detroit to launch a 24-hour children's television service to be carried by both stations. The station also confirmed that it will not participate in the FCC's spectrum incentive auction. On January 16, 2017, World was