On 9/7/2011 5:54 AM, Ed Pawlowski wrote:

wrote
A DVR is basically just a PC (in a small case with a special
interface) that records TV on a hard drive. When they say they can
record more than one channel that means they have more than one tuner.


Everything goes to the hard drive and is then sent to the TV. That is
how it allows you to pause, rewind, FF, etc. When you change channels,
it is not instant, but the ability to do those functions makes it a vey
nice toy to have.

I think we watch way less than an hour of live TV/week. The DVR records
what we tell it. Then watch or not whenever. I built the first one based
on something called MythTV when few even heard the term "DVR" and then
a number of them for friends after they saw it.