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A Bleep censor (or "bleeping") is the replacement of profanity or classified information with a beep sound (usually a 1000 Hz tone (help·info)), in television or radio. It is mainly used in the United Kingdom, Canada, the United States, Australia, New Zealand, Hong Kong, Japan, and Taiwan.
History of the bleep 
Bleeping has been used for many years as a means of censoring TV programs to remove content not deemed suitable for "family" or "nighttime" viewing and personal information for privacy. The bleep censor is a software module, manually operated by a broadcast technician. A bleep is sometimes accompanied by a digital blur or box over the speaker's mouth in cases where the removed speech may still be easily understood by lip-reading.
On closed caption subtitling, bleeped words are usually represented by the phrase "(bleep)", sometimes the phrase "[expletive]", sometimes hyphens (e.g. f--k), and occasionally asterisks (e.g. ****), remaining faithful to the audio track. Where open captions are used (generally in instances where the speaker is not easily understood), a blank is used where the word is bleeped. Occasionally, bleeping is not reflected in the captions, allowing the unedited dialogue to be seen. Sometimes, a "black bar" can be seen for closed caption bleep, or pixels.
Bleeping is normally only used in unscripted programs - documentaries, radio features, panel games etc. - since scripted drama and comedy are designed to suit the time of broadcast. In the case of comedies, most bleeping may be for humorous purposes.
When films are edited for daytime TV, broadcasters usually prefer not to bleep swearing, but cut out the segment containing it, replace the speech with different words, or cover it with silence or a sound effect. In the first example, the film may (unintentionally) become nonsensical or confusing if the removed portion contains an element important to the plot. The bleep is sometimes used for privacy reasons, concealing things such as names and addresses.
Bleeping is commonly used in English- and Japanese-language broadcasting, but rarely used in some other languages (such as Spanish, French, German, Dutch, Italian, and Polish), displaying the varying attitudes between countries; some are more liberal towards swearing, less inclined to use strong profanities in front of a camera in the first place, or unwilling to censor.
||The examples and perspective in this section may not represent a worldwide view of the subject. (March 2013)|
Advertising in the United Kingdom 
Television and radio commercials are not allowed to use bleeps to obscure swearing under BACC/CAP guidelines. However, this does not apply to program trailers or cinema advertisements and "fuck" is beeped out of two cinema advertisements for Johnny Vaughan's Capital FM show and the cinema advertisement for Family Guy season 5 DVD. An advert for Esure insurance released in October 2007 uses the censor bleep, as well as a black star placed over the speaker's mouth, to conceal the name of a competitor company the speaker said she used to use. The Comedy Central advert for South Park: Bigger, Longer & Uncut had a version of 'Kyle's mom is a big fat bitch' where vulgarities were bleeped out, though the movie itself did not have censorship, and was given a 15 rating.
A Barnardo's ad, released in summer 2007, has two versions: one where a boy can be heard saying "BEEP" four times which is restricted to "18" rated cinema screenings, and one where a censor bleep sound obscures the profanity which is still restricted to "15" and "18" rated films. Neither is permitted on UK television.
Trailers for programs containing swearing are usually bleeped until well after the watershed, and it is very rare for any trailer to use the most severe swearwords uncensored.
The UK version of the Adventureland Red Band trailer (the version shown in cinemas) which showed before Funny People and Drag Me to Hell when it was out in UK cinemas had the profanities bleeped out in order to have a 15 certificate.
United States 
The Federal Communications Commission has the right to regulate indecent broadcasts. However, the FCC does not actively monitor television broadcasts for indecency violations, nor does it keep a record of television broadcasts. It relies exclusively on documented indecency complaints from television viewers. The bleep censor is used on many programmings rated TV-14 and TV-MA.
The FCC is allowed to enforce indecency laws during 6 a.m. – 10 p.m. local time. In addition, for network broadcasts, offensive material seen during watershed in one time zone may be subject to fines and prosecution for stations in earlier time zones: for instance, a program with offensive content broadcast at 10 p.m. Eastern Time/Pacific Time may fall out of watershed at 9 p.m. Central Time/Mountain. Many stations have been fined because of this detail. For example, Comedy Central only airs uncensored after 1 a.m. so in Eastern Time, Central Time, Mountain Time, and Pacific Time all have it past 10 p.m.
Cable and satellite channels are subject to regulations on what the FCC considers "obscenity," but are exempt from the FCC's "indecency" and "profanity" regulations, though many police themselves using the same FCC guidelines.
New Zealand 
The Office of Film and Literature Classification enforces what can and cannot be said on television in New Zealand and order television networks to apply the bleep censor over objectionable material.
See also 
- Family Viewing Hour
- Minced oath
- Radio edit
- Sanitization (classified information)
- Tape delay (broadcasting)
- "Beep" (song), a 2006 song by The Pussycat Dolls which incorporates bleeps; see also the 2010 3OH!3 song "Touchin' on My"
- The Morning Show with Mike and Juliet, an American talk show that, in 2008, gained notoriety for using a variation of the bleep censor dubbed a "bleep photo"
- "bleep - definition of bleep by the Free Online Dictionary, Thesaurus and Encyclopedia". Thefreedictionary.com. Retrieved 2012-01-19.
- "Obscenity, Indecency and Profanity". FCC.gov. Retrieved 2012-01-19.