Teletext systems systems existed, but by the end of the decade they converged, with the creation of the World System Teletext (WST). WST remained in use for analogue broadcasts until 2012. The first test transmissions were made by the BBC in 1972–74, with the name "Ceefax" ("see facts"). The Ceefax system went live on 23 September 1974 with thirty pages of information. Due to the adoption of a common teletext standard (WST), the Ceefax system ceased in 1976. The name was retained for the service itself, that continued after that year using the WST standard. "ORACLE" was first broadcast on the ITV
Service Information address of the BBC Engineering Information Department. The bulletin would then end with a rundown of the trade test colour films being shown on that particular day. ""And now we are returning to the colour test card and music until "Play School" at eleven o'clock"" would be a familiar closing phrase. "Service Information" bulletins generally lasted an average of two or three minutes but on Wednesday 25 August 1971, the longest "Service Information" bulletin known was aired, which ran for 11 minutes. A Monday to Friday "Tuning Information" bulletin was added to BBC2 in the heyday of colour coming to