Teletext 2016, the Teefax teletext service was launched in the United Kingdom to coverage by the BBC, ITV and others. Using a Raspberry Pi computer card as a set-top box, it feeds its service to standard televisions. Teefax content is a mix of crowdsourcing, syndication and contributions from media professionals who contributed heavily to broadcast teletext services. Teefax is also syndicated to a web viewer. The systems were originally incompatible; Ceefax displayed pages of 24 lines with 32 characters each, while ORACLE offered pages of 22 lines with 40 characters each. In other ways the standards overlapped; for instance, both used
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