I saw Jean Piché at one of the concerts organized by CIRMMT (The Centre for Interdisciplinary Research in Music Media and Technology) at McGill. His HD-video tryptichs, which seems to be his preferred medium lately, span some 20 feet wide. The audience is invited to sit very close to the screen.

First video:

Bharat, 2002
three-channel video and stereo sound

Second video:
Whispers in a Plane of Light, 1983
Fairlight and Sandin Image Processor
Video: JoAnn Gillerman

Windows 3.1 wallpaper from a Web 1.0 Wonder of the World, "Lightspeed's reference page - Everything Windows 3.1":