14:9 (1.:1) is a compromise aspect ratio between 4:3 and 16:9. It is used to create an acceptable picture on both 4:3 and 16:9 TV, conceived following audience tests conducted by the BBC. It has been used by most UK, Irish, French, Spanish, Colombian and Australian terrestrial analogue networks, and in the US on Discovery Networks' HD simulcast channels with programming and advertising originally compiled in 4:3. Note that 14:9 is not a shooting format; 14:9 material is almost always derived from either a 16:9 or 4:3 shot, and no televisions have ever been made in 14:9.
Usage
With native 16:9 material
A common usage is for material shot in 16:9 format. During production, the important action is kept within the centre of the picture, known as the 14:9 safe area. When the material is broadcast in a 4:3 format (such as for analog television), the sides of the image are cropped to 14:9 and narrow black bars are added to the top and bottom. It is considered that viewers who are not used to wide-screen will find this less distracting than the letterbox format that would result from broadcasting the full 16:9 picture in analogue, while still seeing more of the picture than would be visible if cropped into 4:3. When the same material is broadcast in 16:9 (such as for digital television), the full 16:9 frame is left intact, but widescreen signaling auxiliary signals tell the receiver that the picture is suitable for cropping to 14:9 if necessary (for example, when the receiver is connected to a 4:3 display).
The major benefit in shooting 16:9 with protection for 14:9 (rather than 4:3) is improving the usable screen area for titles, logos and scrolling text. The visible enhancement is significant due to the restrictive requirements of overscan. When shooting in 16:9 for potential 4:3 distribution, the "Shoot And Protect" method (from the BBC's "Widescreen Book") is employed. As the name suggests, footage is shot in 16:9 but important visual information is protected inside the 14:9 or 4:3 safe areas.
With native 4:3 material
Another use is for material shot on a 4:3 format. When broadcast in 16:9, the top and bottom of the original frame are cropped to 14:9, and black bars (called pillarboxes) are added to either side. When broadcast in 4:3, the 14:9 crop is often used in preference to the original 4:3 frame. This is especially common when 4:3 footage needs to be included in an otherwise 16:9 program, such as a news broadcast, and was used in the 2000s by the BBC's children's channels (CBBC & CBeebies) to broadcast older children's programming shot in 4:3 on a larger proportion of a 16:9 screen.
Adoption by TV channels
Viacom International Media Networks Europe uses 14:9 for its music videos that are in 4:3. Nearly all of VIMN Europe's music channels around Europe (with the exception of MTV 80s and the now-defunct VH1 Classic and MTV Classic Italy) transitioned to widescreen from 2011 until 2015, all of the 4:3 music videos are cropped to 14:9 (with the exception of the now-defunct MTV Adria, where all of the 4:3 music videos were stretched horizontally to 16:9). From 2020 on MTV Latin America 4:3 music videos will be broadcast in 14:9 aspect ratio.
JimJam also uses 14:9 for reruns of classic children's programming as well.
Philippines
CNN Philippines was the first Philippine TV channel to air in 14:9 until March 2017, when it was later transitioned to 16:9.
UK
In the UK, most channels broadcast in 16:9. On Nick UK, the 14:9 cropping is used on adverts and shows which were produced in 16:9, such as House of Anubis, iCarly, Victorious and Big Time Rush, to present a more consistent output. Nick UK, along with its sister channels Nick Jr. UK and Nicktoons UK, were the only children's channels that were not shown in 16:9, but made the switch in 2013 (With Nicktoons UK remaining in 4:3 until February 2017). The HD channel, Nick HD UK, was already shown in 16:9 before this, with 4:3 programming shown in the pillarbox effect.
US
The primary use of 14:9 in the US was for full screen channels in the 2000s to show content that had been produced in 16:9. One major show to receive this treatment was Star Trek: Enterprise.