CHNB-TV was a television station in North Bay, Ontario, Canada. The station was in operation from 1971 to 2002 as a private affiliate of CBC Television.

CHNB was established on October 15, 1971, by J. Conrad Lavigne, the owner of CFCL in Timmins. On the same day, the existing television station in North Bay, CKNY, switched affiliation to CTV.

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.

In 1990, the MCTV stations were acquired by Baton Broadcasting, which became the sole corporate owner of CTV in 1997.

On April 13, 1978, the CBC was given approval to add a television transmitter at Temiscaming, Quebec on channel 21 with an erp of 75 watts to rebroadcast the programs of CHNB-TV North Bay, Ontario. ^[1]

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.^[2] 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.^[3][4]

Since 2013, the CHNB callsign currently belongs to a television station in Saint John, New Brunswick, known as CHNB-DT.

• CRTC Decision 2001-457-6, licence renewal for all MCTV stations.
• CHNB-TV at The History of Canadian Broadcasting by the Canadian Communications Foundation