I recently upgraded to a 8500gt from a 7950gt and (finally) managed to get hardware decoding to work. I am now runing ~4% TV1&2 and ~8% tv3.
BUT, the picture quality seems to be worse after changing from VMR9 to EVR. The juddering has gone from tv3 and the other interlaced channels, but it doesn't look as crisp for all channels. There are a huge number of variables: application, codec, tv and PC settings, etc.
So, who has noticed differences in picture quality and what settings work best for you?
My current setup:
MB: MSI 945GCM5 V2
CPU: E8400 c2d 3.0GHz
RAM: 2 GB
GPU: MSI NX8500GT-MTD256EH/D2 HDMI
Tuner: Haupaugge HVR3000
Monitor: Philips 47PFL9532 1080p
Application: MediaPortal TV Server RC2
Codec: PowerDVD H.264 (all others uninstalled)