Here is a search of the Radio Times archive for "webcam", sorted by earliest first: https://genome.ch.bbc.co.uk/search/0/20?order=first&q=webcam+ Some of the early entries seem to be discussions of webcams (including one on the radio!) rather then demos of them. However, the first is for 26 May 2001. The earliest entry for "web-cam", with a space or hyphen, is in 2006. This is hardly definitive, though as the entries for Sub Zero do not include the word in any form. The earliest entry is: https://genome.ch.bbc.co.uk/824a0a27854c4cacbbcdf4d9b6c59daf