Epson is one of the biggest producer of front video display devices. While more established in the presentation/office market, Epson has made some significant strides in the consumer - home theater market in recent years with small, affordable 1080p projectors at prices that blow the competition out of the market.
Epson also partnered with some respected audio companies to make an all-in-one home-theater-in-a-box system that is quite powerful. It includes a screen, three speakers built into the screen, a DVD player, electronics including a processor and amps as well as surrounds and a sub. It's a plug and play solution for people that want a MUCH bigger than plasma or LCD experience without the $30,000 bid from the installer.

Notable products are the PowerLite series of projectors, the MovieMate series, the Home Cinema series and the Pro Cinema series.
HomeTheaterReview.com's Epson product reviews include:
Epson PowerLite Home Cinema 8700 UB projector Epson PowerLite Pro Cinema 9500 UB projector Epson PowerLite Home Cinema 6100 projector Epson PowerLite Home 10 LCD projector
Similar companies include BenQ, Optoma, and Sony.