I found this a few weeks ago on my Masterfile 3 disk - a useful little APP that would have been sourced from one of the UK PD libraries in the nineties.
N.B.
As the screen clearing routine/"special effect" gives only a completely black screen when displayed using the OSSC, it (Thanks @AMSDOS )
has been bypassed.
Both the telephone number and address shown in the video are no longer valid.
https://www.youtube.com/watch?v=caTAdQnXVyE (https://www.youtube.com/watch?v=caTAdQnXVyE)
Links:
https://en.wikipedia.org/wiki/Amstrad_Action (https://en.wikipedia.org/wiki/Amstrad_Action)
http://www.cpcwiki.eu/index.php/Type_Ins (http://www.cpcwiki.eu/index.php/Type_Ins)
http://www.cpcwiki.eu/index.php/AA_Type_Ins (http://www.cpcwiki.eu/index.php/AA_Type_Ins)
https://archive.org/details/amstrad-action-087/page/n37 (https://archive.org/details/amstrad-action-087/page/n37)
https://en.wikipedia.org/wiki/Type-in_program (https://en.wikipedia.org/wiki/Type-in_program)
Not emulated - original hardware and software
Please note that the aspect ratio for this YouTube video is 16:9 but the CPC monitor
has an aspect ratio of 4:3 so you may wish to adjust your viewing device accordingly.