Long the domain of the office, newer devices enable proper viewing/listening in the family and living rooms of the world. Below is a sample of one such firm:

digital 5 | empowering entertainment

the D5 consumer electronics networking technology that enables consumer electronics devices, like DVD players, to play content from PCs and other devices across home networks to the television or entertainment center.

TiVo Series II units allow viewing of home photos and listening of MP3s on your home PCs/servers on the TV audio system.

This article in Popular Sciense explains the same sort of thing in the form of Gateway's Connected DVD player. and yet more from PC World.