Webcam captures images from a video4linux device like bttv,
annotates them and and uploads them to a webserver using ftp
in a endless loop.
Alevtd is http daemon which serves videotext pages as HTML.
Tune in some station with a utility like v4lctl or some TV application.
Then start it and point your browser to http://localhost:5654/
Pages may be requested either in HTML format (http://localhost:5654//
or http://localhost:5654//.html) or in ASCII text format
Subpage "00" can be used for pages without subpages.