Some early experiments with teletext art from late 2007 and early 2008, inspired by the VBI Microtel project.
Editing software is Cebra, which is what we all used for teletext art before the plethora of freely-available editors made available post-2014. It has a distinctive typeface (Courier?) that makes it easy to identify from screenshots alone.
I believe the raw teletext files are “lost media”, but these delightfully crunchy .gif images have survived the harshness of time. On the whole, they are edited image imports – Cebra is particularly good for this type of appropriation art.