1. If you have a DISH Network receiver that has a "High Speed Port" on the back, you can get a Dolby Digital converter for about $70. It provides a coaxial digital output. Bear in mind however that there's not a whole lot on the DISH that's in DD yet (but that'll change like everything).

2. DISH Network has a receiver that has WebTV and has a basic TiVo functionality to it. It is supposed to soon be upgraded with new software that will let its internal hard drive record scheduled programming, like TiVo and RePlay. It, too, has a Dolby Digital output on it - but optical. It's called the DishPlayer.

I don't have either of these devices, just know about them.

These answers won't help you if you don't have/like/want DISH Network, but someone else might have the same question...