2013 "Il Volo at the Miami Fillmore - We Are Love" concert, the March 2013 "Il Volo at the Miami Fillmore - Buon Natale" concert, the June 2015 "Il Volo - Live at Pompeii" concert, and July 2016 Il Volo - "Tribute to the 3 Tenors - in Florence" concert. Controversy In 2005, WTVS declined to air the controversial Postcards from Buster episode "Sugartime!", even after the show's Boston-based producing station, WGBH, converted it to the status of being specifically shown to individual stations. The decision was made after PBS received a complaint from then-newly-appointed Education Secretary Margaret Spellings, who was upset its storyline, in which the main character, Buster Baxter, pays a visit to Hinesburg, Vermont, to learn how maple sugar is made, and interacts with several children who have lesbian parents. The controversy surrounding the episode let to it being removed from PBS Kids Go!'s national broadcast schedule. Technical information Subchannels The station's digital signal is multiplexed: Many newer television receivers also list WTVS subchannels 43.177 and 43.193. These subchannels are artifact channels from the UpdateTV service. WTVS also has plans for a Mobile DTV feed of subchannel 56.1. Analog-to-digital conversion WTVS became the first public broadcaster in the state of Michigan to offer a digital high-definition feed, launching their simulcast on UHF 43 in October 2000 (exact date not yet known). The station shut down its analog signal, over UHF channel 56, at noon on April 16, 2009; the switchover occurred after a presentation of the national anthems of Canada ("O Canada") and the United States ("The Star-Spangled Banner"). WTVS management cited repeated failures of the station's 28-year-old analog transmitter as the reason for ceasing its analog signal on April 16 rather than the June 12 transition date for full-power stations (the analog transmitter had failed seven times between January 1 and April 16 alone). The station's digital signal continued to broadcasts on its pre-transition UHF channel 43. Through the use of PSIP, digital television receivers display the station's virtual channel as its former UHF analog channel 56, which was among the high band UHF channels (52-69) that were removed from broadcasting use as a result of the transition. On October 12, 2009, WTVS upgraded to a new 600 kW transmitter, tripling its effective radiated power and vastly increasing the coverage area of its signal. On January 13, 2017, WTVS re-organized its digital subchannels when it added