EyeTV 3 software supports various tuner hardware from different 3rd party manufacturers.
Over the years, Hauppauge has released a number of tuner devices, some of which work with EyeTV.
EyeTV 3 software does not support the current WinTV-HVR-950Q tuner hardware, manufactured by Hauppauge and currently sold in the marketplace.
http://www.hauppauge.com/site/products/data_hvr950q.html
EyeTV 3 does support a much older version of that hardware – different hardware, but under the same name. That version of the WinTV-HVR-950Q, released a few years ago, is no longer available for sale.
This is the older 950Q (which does work with EyeTV 3):
This is the newer unit (which doesn’t with EyeTV 3):
They have cosmetic differences. You can see how the text, font and graphics printed on each unit is different.
A list of peripherals that are currently compatible with EyeTV 3 can be found on this page: