The review of TV tuners were great.I would like to share some information that would be useful for other users also.
The Mercury card & Pinnacle Dazzle TV tuners are repackaged version of LIFEVIEW FlyTV Prime 3X Series.
It works best with the software from LIFEVIEW.The software contains TV / Video viewing feature, still image capture and motion video recoding to MPEG1/2/4 function.It is free to download at
http://www.lifeview.com.tw/html/down..._3x_series.htm
Mercury ships the software over 4 years old.This WHQL certified driver will surely improve the test centre scores of the card.Regarding non availability of STEREO TV in india is mainly due to non compatability of stereo signals to older TV sets here.
If cable operator transmits stereo sound,in the older monoTV sets,the LEFT and RIGHT channels will cancel each other so no sound will be heard in these TV sets.