Teletext

A text-based information service broadcast within the television signal that allowed viewers to access pages of text and simple graphics using their TV remote control. Originating in the UK with the BBC's Ceefax service in 1974, teletext provided news, weather, sports results, and subtitles. It represented one of the earliest forms of interactive television content and was a significant accessibility feature, providing text-based information access and subtitle services for deaf and hard of hearing viewers. Analogue teletext services were largely discontinued with the transition to digital broadcasting, though similar text services continue in digital formats.