CB and variants may refer to:
CBS (an initialism of the network's former name, the Columbia Broadcasting System) is an American English language commercial broadcast television network that is a flagship property of CBS Corporation.
CBS Evening News is the flagship evening television news program of CBS News, the news division of the CBS television network in the United States.
CBeebies is a BBC television network for programming aimed at encouraging "learning through play in a consistently safe environment for children aged 6 or under", and providing "high quality, mostly UK-produced programmes".
CBC Television (also known as simply "CBC") is a Canadian English-language broadcast television network that is owned by the Canadian Broadcasting Corporation, the national public broadcaster.
Chemical, biological, radiological and nuclear defense (CBRN defense or CBRNE defense) is protective measures taken in situations in which chemical, biological, radiological or nuclear warfare (including terrorism) hazards may be present.
CBS News is the news division of American television and radio service CBS. The president of CBS News is David Rhodes.
CBBC (originally Children's BBC) is a British children's television strand owned by the BBC and aimed for older children aged from 6 to 13. BBC programming aimed at under six year old children is broadcast on the CBeebies channel.
CBC News is the division of the Canadian Broadcasting Corporation responsible for the news gathering and production of news programs on the corporation's English-language operations, namely CBC Television, CBC Radio, CBC News Network, and CBC.ca.