For broadcast TV I use PLII-CRM. Started off with CRC but found CRM gave me a better center channel. I also found that switching from digital to analog for ABC's implementation of DD5.1 improved center channel dialog on programs like Alias and Dragnet. ABC's implementation of DD5.1 causes way too much surround bleed through to the center channel. The bleed problem doesn't occur on the other networks.

On another forum I read that Jim Fosgate also prefers PLII-CRM on stereo TV sound.