If you are setting up a HTPC with two or more cards/devices to be used simultaneously with Media Center (MCE 2005 or Vista),
DNTV Live! or DNTV Scheduler Pro, you might benefit from reading the following:
Tips
Note that Media Center officially supports only two tuners, however it is possible to tweak the registry to enable more than two tuners.
You might want to read this article for details on how to do it. A tool is also available to facilitate this task.
The following examples provide a snapshot of the Device Manager - under the Sound, video and game controllers for various situations:
One TinyUSB 2 Receiver and one DVICO Lite PCI Card

Two DNTV Live! Pro PCI Cards
Two DVICO Plus PCI Cards

DNTV Live! + DVICO Full (T1) PCI Cards

DNTV Live! + DNTV Live! LP (low profile) Cards

Three DNTV Live! PCI Cards

Four DNTV Live! LP (low profile) Cards
In more recent times, drivers development has improved considerably whereby one device entry is required for multiple tuners making installation very easy.
The following examples Indicate what you should see in the Device Manager for some our more recent products.
Dual Hybrid PCI-Express S2 Card

Hybrid LP S2 Card

TinyTwin (Dual USB) DVB-T Receiver

Dual Digital PCI-Express card
