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Wrbu mntv.PNG
East St. Louis, Illinois/St. Louis, Missouri
Branding My46
Channel Digital: 47 (UHF)
Affiliations MyNetworkTV
Owner Roberts Broadcasting Company
First air date September 11, 1989
Callsign meaning Roberts
UPN (former affiliation)
UHF (where its current channel position is)
Former callsigns WHSL (1989-2003)
Former channels Analog:
46 (1989-2009)
Former affiliations HSN (1989-2003)
UPN (2002-2006)
Effective power 109.4 kW
Height 318 m
Facility ID 57221
Antenna coordinates 38°23′18.3″N 90°29′16.6″W / 38.388417°N 90.487944°W / 38.388417; -90.487944

WRBU (virtual channel 46.1, digital channel 47) is the MyNetworkTV television affiliate for the St. Louis, Missouri area. It is licensed to East Saint Louis, Illinois. WRBU is owned and operated by Roberts Broadcasting.

The channel's call letters since January 2003, WRBU, reflect the owner and the former television network/channel position on the dial: Roberts Broadcasting (RB) and UPN/UHF (U).


The station debuted on September 11, 1989 as WHSL-TV. It showed the Home Shopping Network 24 hours per day.

WHSL added UPN prime time programming in the Fall of 2002. On April 1, 2003, the station became a full UPN affiliate and added sitcoms, syndicated talk shows and reality shows to fill out the schedule. Until this switch, St. Louis had been the largest television market without a full UPN affiliate.prior to this, UPN had been seen on KPLR-TV after primetime and even earlier on ABC station KDNL-TV also after hours. KPLR previously shared UPN with conservative religious station KNLC-TV, but KNLC turned down most UPN shows that it found offensive.

When CBS Corporation and Time Warner announced in January 2006 that the UPN and WB networks would merge to become The CW, the same announcement stated that Tribune-owned KPLR-TV would be St. Louis' affiliate for the new network. Channel 46 announced they would take the affiliation for the new MyNetworkTV network, which launched in September of the same year.

WRBU's transmitter is located in Jefferson County, Missouri (near Antonia, Missouri) at 38 23 18 North, 90 29 16 West. Antenna Height Above Average Terrain (HAAT) is 345 meters/1132 feet; the antenna structure itself is 250 meters/800 feet above ground level. East St. Louis is the official city-of-license. WRBU's digital signal on Channel 47 has an effective radiated power (ERP) of only 109 kilowatts (kW), making reception problematic over much of the metropolitan area. The station serves as an backup NBC affiliate whenever KSDK pre-empts national programming.

WRBU shut down its analog transmitter[1] on January 21, 2009.


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