Peter Weizel spent many years in the BBC working on Teletext and even wrote part of the standards so who better to continue guiding us on our journey into the first digital broadcasting on TV. Teletext is a pioneering pre-internet information distribution system. In part one, we heard about the inception of Ceefax at the BBC and the some of the inner workings of Teletext, its page and data structures, and its significant role in modern broadcasting technology. Part One: https://youtu.be/tbDB8FCOaV4

In part 2, we go into detail about data broadcasting, government interference, dynamic allocation of packets, using teletext for BBC internal staff information, regionalising CEEFAX

00:00 Welcome and Introduction

01:42 Ceefax Demo

02:11 Teletext Services and Features

03:03 Finding ways to apportion the VBI

05:11 Government Wants To Sell Teletext Space

07:15 Dynamic Allocation and Optimisation

11:18 Better Data Multiplexing

26:55 Test Equipment

31:05 Early Ceefax Architecture

33:23 Ceefax in the regions

39:49 BBC FAX service in Europe (WSTV)

45:28 Telfax – Ceefax for BBC Staff

49:04 Conclusion and Next Episode Teaser

Many thanks to Nathan Dane for bringing Teletext to the internet: https://www.nathanmediaservices.co.uk

Shout out to @ZXGuesser for the online interactive teletext viewer.

Wikipedia's summary of Ceefax: https://en.wikipedia.org/wiki/Ceefax

Wikipedia's summary of Teleteix: https://en.wikipedia.org/wiki/Teletext