|Channels||Digital: 15 (UHF)|
Virtual: 15 (PSIP)
|Affiliations||Cozi TV (2017-present)|
|Owner||Hawaii Catholic TV, Inc.|
|First air date||October 1, 2003|
|Call letters' meaning||Hawaiian for "to sprout"|
|Former callsigns||KMGT (2003-2006)|
|Former channel number(s)||Analog:|
56 (UHF, 2003-2009)
|Former affiliations||Antenna TV (2011-2012)|
Religious independent (2012-2017)
|Transmitter power||12 kW (DTS1)|
49.6 kW (DTS2)
|Height||373 m (1,224 ft) (DTS1)|
687 m (2,254 ft) (DTS2)
|Public license information||Profile|
KUPU, virtual and UHF digital channel 15, is a Cozi TV affiliated television station serving Honolulu, Hawaii, United States that is licensed to Waimanalo. The station is owned by Hawaii Catholic TV. KUPU's studios are located on Waimanu Street in downtown Honolulu, and its two transmitter sites are located near Waimanalo Beach and at Mauna Kapu at the top of the Waianae mountain range. On cable, the station is available Oceanic Spectrum channel 56 and Hawaiian Telcom channel 15.
The Federal Communications Commission (FCC) issued a construction permit to Waimanalo Television Partners on October 17, 2000, to build a full-service television station on UHF channel 56. The new station was given the call letters KMGT. The station began operating on October 1, 2003, under a Program Test Authority and was officially licensed on June 18, 2004. In September 2006, Oceania Christian Church bought the station from Waimanalo Television Partners and the following month, changed the station's call letters from KMGT to KUPU, derived from the Hawaiian word for "to sprout".
|Channel||Video||Aspect||PSIP Short Name||Programming|
|15.1||480i||4:3||KUPU||Main KUPU programming / Cozi TV|
Because it was granted an original construction permit after the FCC finalized the DTV allotment plan on April 21, 1997 , the station did not receive a companion channel for a digital television signal. On January 15, 2009, KUPU shut down its analog signal, over UHF channel 15, on January 15, 2009, the date in which full-power television stations in Hawaii transitioned from analog to digital broadcasts (six months earlier than the June 12 transition date for stations on the U.S. mainland).
The station flash-cut its digital signal into operation on UHF channel 15; its former analog channel 56 was among the high band UHF channels (52-69) that were removed from broadcasting use and auctioned by the U.S. government for other uses as a result of the transition, using PSIP to display the station's virtual channel as its former UHF analog channel 56; although stations are required to use a PSIP virtual channel that corresponds with their analog channel allocation, KUPU later remapped to virtual channel 15, matching its physical digital signal.
The station previously aired both locally produced and nationally syndicated Catholic-oriented religious programming from CatholicTV, as well as programming from Vatican TV. In 2017, the station affiliated with the NBCUniversal-owned Cozi TV network.