|City||North Bay, Ontario|
|Branding||MCTV - CBC|
|Channels||Analog: 4 (VHF)|
Mid-Canada Communications (1971 - 1990)|
Baton Broadcasting/CTV Inc. (1990 - 2002)
|First air date||October 15, 1971|
|Last air date||October 27, 2002|
|Transmitter power||100 kW|
|Transmitter coordinates||46°3′46″N 79°26′7″W / 46.06278°N 79.43528°W|
Until 1980, CHNB and CKNY aggressively competed with each other for advertising revenues, leaving both in a precarious financial position due to the North Bay market's relatively small size. In 1980, the Canadian Radio-television and Telecommunications Commission approved the merger of the two stations, and with their co-owned stations in Sudbury and Timmins, into the MCTV twinstick.
End of operations
In 2002, CTV sold its four CBC affiliates in Northern Ontario — CHNB, CJIC in Sault Ste. Marie, CKNC in Sudbury and CFCL in Timmins — directly to the CBC. All four ceased to exist as separate stations on October 27, 2002, and become rebroadcasters of Toronto's CBLT. CHNB's call sign was changed to CBLT-4. These translators closed on July 31, 2012, because of budget cuts at the CBC.
- CRTC Decision 2001-457-6, licence renewal for all MCTV stations.
- CHNB-TV History - Canadian Communications Foundation