|Channels||Digital: 4 (VHF)|
|Call letters' meaning||W(R)OCK music (for former music video format)|
|Former callsigns||W13BE (1984-1994)
|Former channel number(s)||Analog:
|Former affiliations||The Box, MTV2 (until 2001)
Azteca América (2006-2008)
CV Network (2008-2010)
|Transmitter power||300 watts|
WOCK-CD is the MundoFox affiliate for Chicago, Illinois in the United States. It is owned by KM Communications, and transmits on VHF channel 4. It is a sister station to WOCH-CA. The transmitter is located on the John Hancock Tower.
 Digital television
|13.1||4.1||720p||16:9||Mundo||MundoFox (MundoFox 13 Chicago)|
WOCK was an affiliate of The Box until that network's acquisition by Viacom in 2001, resulting in The Box being merged into MTV2. The station became an affiliate of Florida-based Videomix which aired hip hop music videos, during the mid-summer 2001. That autumn, it began broadcasting programs from China Central Television, carrying a mix of CCTV-4 and CCTV-9 programming provided by China Star TV. It switched to Azteca América in 2006, and then to CV Network in late 2008.
WOCK-CA received a construction permit to build a low-power digital television station, WOCK-CD, on channel 4, radiating primarily to the southwest. This took to the air at midnight on June 4, 2009, with WOCK then ceasing its analog transmission.
After the transition, WOCK was running the CV Network programming previously seen on the analog signal on virtual channel 13.1, and Korean language programming, simulcast from co-owned WOCH-CA, on virtual channel 13.2. WOCK dropped CV Network for Mega TV on January 11, 2010.
- Malone, Michael (January 11, 2010). "Mega TV Debuts in Major Markets". Broadcasting & Cable. Retrieved January 11, 2010.
- "WOCK-TV Introduces 24-Hour WeatherNation TV to Chicago". January 28, 2013. Retrieved January 29, 2013.
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