gkmac

Two blocky stick figures on a partially shaded background. The image is a screenshot of a BlueSky post by Terence Eden or @edent.tel which has partial text "just about doable with the Unicode".

The sixels are in the same set, the U+1FBxx range has the contiguous mosaics along with the G3 smooth mosaics. The "Symbols for Legacy Computing Supplement" in the U+1CExx range has the separated mosaics.
en.wikipedia.org/wiki/Symbols...

Here's proof that they do render on a Linux browser.

Seems that the "Unicode symbols for Legacy Computing" only appear on Linux web browsers. None of my Windows desktops nor my Android phones will show them...

A way to post #teletext art on social media WITHOUT using an image?

A Level 2.5 teletext page of a logo on a white background. The logo is the blue letters "TV" in a thick angular style on the top and a purple letter "W" in a cursive style on the bottom. Around the letters are a rounded lilac rectangle. The top of the rectangle has two diagonal lines emerging upwards from the middle in a "V" shape similar to an old-fashioned TV aerial.

A Level 1 teletext page of a logo on a white background. The logo is the blue letters "TV" in a thick angular style on the top and a magenta letter "W" in a cursive style on the bottom. Around the letters are a rounded magenta rectangle. The top of the rectangle has two diagonal lines emerging upwards from the middle in a "V" shape similar to an old-fashioned TV aerial.

A #teletext tribute to Terence Burridge who passed away a year ago today.

His TV Whirl website lives on.
www.tvwhirl.co.uk

Pages from Ceefax YouTube video by Nathan Dane

The Pages from Ceefax live stream has now been running for a full year - as of about 5pm (GMT).

www.youtube.com/watch?v=v8OU...

A teletext artwork of Bertha, a green industrial machine with features resembling a face including white round eyes, a red nose and a large hatch like a huge mouth. The top of the hatch has white protective flaps that look like teeth and at the bottom is a conveyor belt resembling a tongue. Text above and below the machine reads "Bertha, lovely Bertha, you are a lovely machine!"

A #teletext artwork of Bertha from the animated TV series of the same name, the huge, slightly sentient but lovely factory machine who could make anything.

Some three decades before 3D printers became affordable.

Happy New Year #Teletext

Teletextmas and a Blocky New Year.

Recreated BBC1 clock circa 1991

BBC Two Northern Ireland clock

1970s mechanical BBC1 clock

1980s electronic BBC1 clock

It's still a work in progress, but seems stable enough for "public beta", so by popular demand here's a standalone version of the parametric clock generator I recently added to my online teletext viewer:
zxnet.co.uk/clock/#templ...

A diagram of a partial AZERTY keyboard layout with coloured keys. From left to right: the "1" and "A" keys are red, the "2" and "Z" keys are green, the "3" and "E" keys are yellow, the "4" and "R" keys are blue, the "5" and "T" keys are magenta, the "6" and "Y" keys are cyan, the "7" and "U" keys are white and the "0" and "P" keys are black.

QTeletextMaker 0.8.2-beta released. For AZERTY keyboard users the Level 2.5 #teletext editor has alternate keymappings for inserting colour attributes, using the top row of letters without having to Shift the numbers every time.

Windows .exe from the zip as usual: github.com/gkthemac/QTe...

Release Fixed Explorer file open not working · peterkvt80/wxted Opening a tti file in Explorer would cause wxTED to allocate all the memory until Windows crashed. Fixed by checking file open status and switching to smart pointers.

Ever fancied making your own Ceefax pages? Latest version of my #teletext editor is at github.com/peterkvt80/w...

Teletext mockup/art inspired by yesterday's Cloudflare outage. P100 Teletext 100 Nov18 14:00:13 Internal server error Visit Cloudflare on p799 for more info. 2025-11-18 14:00:13 UTC Pixel art of a TV with bunny-ear aerial with a green tick, a TV transmitter with a red tick, and a PC with a green tick. You, TV: Working London, Cloudflare: Error Teletext, Host: Working What happened? There is an internal error on Cloudflare's network. What can I do? Please try again in a few minutes. Cloudflare Index

A (horrible) alternate reality, inspired by yesterday.
#Cloudflare #Teletext #TeletextArt #Art

A teletext page with a small 16 colour bitmap picture on the right of a Scarlet Macaw parrot sitting on a metal frame. On the left is the explanatory text "Level 3.5 DRCS. Mode 2 characters, 12x10 pixels of 4 bitplanes or 16 colours. 96 DRCS characters over 384 PTUs stored across 8 subtables. 12 rows of 8 columns or 96x120 pixels."

Were colour bitmap graphics possible in #teletext ?

With Level 3.5 DRCS they could have been. But hopelessly impractical; all the bitmap data is stored across 8 subpages and you'd need to wait for them all to come around.

Just for that one picture that's the biggest size possible in 16 colours.

Level 2.5 #teletext needn't be that hard. Sometimes a simple palette remap is all an artwork needs to stand out.

CALL FOR ENTRIES – 2025 Teletext Advent Calendar on Yle Text This year’s loading bar is approximately ten twelfths complete, so it’s time once again for the traditional teletext community Advent calendar! This will be our fifth consecutive annual festive projec...

teletextart.co.uk/call-for-ent... #teletext

QTeletextMaker v0.8.1-beta released. No new features but the Level 2.5 #teletext editor has had a major bug squashed that sometimes caused the central page editor widget to get "lost" or squashed into a tiny corner of the main window.

Windows .exe from the zip as usual:
github.com/gkthemac/QTe...

A Level 2.5 teletext page with a dark green background on which there a spread of five playing cards. The top-most card on the right is the ten of clubs, the cards underneath are the jack of clubs, queen of clubs, king of clubs and the ace of clubs. The clubs on the cards are not blocky but are high resolution images courtesy of DRCS character definitions.

QTeletextMaker v0.8-beta released. The Level 2.5 #teletext editor now renders DRCS characters and slightly improved diacritical'd G0 capital letters.

Grab a Windows exe from the zip at github.com/gkthemac/QTe... (mind the SmartScreen warnings!) or compile the source on Linux with #Qt6 and CMake.

All the tellies up and running at #ChunkyFringe

As if black foreground wasn't controversial enough, should modern Level 1 and 1.5 #teletext decoders obey the double width and double height control codes?

The ETSI spec says they are Level 2.5 only, but in real life some Level 1 and 1.5 decoders made since about 1999-ish do interpret them.

zxnet.co.uk/teletext/vie...

Chunkytext page 200. "Your art here"

Another reminder that the #ChunkyFringe teletext editing system is online for anyone to have a go at creating real teletext pages:

blockparty.zxnet.co.uk

Channel your inner @mrbiffo.bsky.social* and come and admire your creations in all their chunky glory on CRT tellies in Harrow this Saturday!

A teletext page mostly of a magenta background with the text "Content not viewable in your region" in the middle. At the top left is the text "Frame it" and at the bottom is the text "John, 5".

Ahh, good old #teletext with no cookie pop-ups, no registrations or sign-ins, no autoplaying videos... and no sudden geo-blocks either.

A Level 2.5 teletext graphic of a blue and white chocolate bar wrapping on a purple background. The wrapping has the word "Diary Bilk" in big serif letters, with "Crudeberry's" in smaller gold text above and "Chunky" in the corner. Below the bar is the slogan "one chunk leads to another".

A Level 1 teletext graphic of a blue and white chocolate bar wrapping on a magenta background. The wrapping has the word "Diary Bilk" in big serif letters, with "Crudeberry's" in smaller yellow text above and "Chunky" in the corner. Below the bar is the slogan "one chunk leads to another".

For the upcoming #ChunkyFringe the #WeeklyTeletextArt prompt is "Chunky" and/or "Fringe".

Here's a #teletext nod to an old chocolate advert; regrettably trademarks have had to be altered for legal reasons.

One week today... we're going to be doing a whole bunch of nonsense at Chunky Fringe. It's all the fun of Digi Live without us having to spend a fortune on props. Details here: www.arbitraryfiles.com/events/cf25/...

The ChunkyText user pages magazine has been cleared out ready for next weekend, and the edit server is LIVE NOW.

blockparty.zxnet.co.uk

I thought since we have a week to go until Chunky Fringe maybe we should call those a #WeeklyTeletextArt prompt for anyone needing a bit of artistic inspiration 😁

A television showing a Level 2.5 teletext page. On the right is a small black and white bitmap of a parrot. On the left is the text "Level 2.5 DRCS. Mode 0 characters, 12x10 pixels of 1 bitplane. 24 DRCS characters over 24 PTUs. 6 rows of 4 columns or 48x60 pixels".

My first ever attempt at getting a Level 2.5 #teletext DRCS bitmap onto a real TV!

24 monochrome characters is the maximum you can have on screen; the bitmaps (or Pattern Transfer Units as they're called) are downloaded from a separate hidden page.

DRCS rendering in QTeletextMaker coming soon...

A teletext page full of today's Bluesky posts

I've finally got around to looking at how I could port teletext-twitter by mastodon.radio/@markpentler to the Bluesky api, and it turned out to be way easier than I expected! At least for the mode I wanted.

I've even added a couple of things teletext-twitter never had 😄

zxnet.co.uk/teletext/vie...

Dear friends, don’t buy this.

It’s shit. Just don’t, ok

If you do, it will drive you nuts

Thank you for your attention, we now return to normal programming

My word, you lot do love #Teletext don’t you. Well done

BBC Videobook of British Garden Birds was the 1st LaserVision Disc with Teletext

BBCs Service was called Ceefax =
See Facts

CAV
Dual Sound, Birds one track, David in other
Index & Subtitles

Technical marvel in its day

#LaserDisc