Working with Level 2.5 teletext - Beyond eight colours

How to create Level 2.5 teletext pages with the QTeletextMaker software. Presented at the "Teletext 50" event at The Centre for Computing History, Cambridge. Recorded and streamed by Jamie Nemeth‬. QTeletextMaker download and source code: https://github.com/gkthemac/QTeletextMaker ZXNet editor: https://www.zxnet.co.uk/teletext/editor/