Can anyone help me find a newsgroup with the following in mind.

I am in the market for a 46" LCD HDTV. I have identified the one I want. I
have checked it out at Best-Buy, H.H. Gregg, ShopNBC and various on line
vendors. Prices vary from $3000 (H.H. Gregg) to $2300 (Best-Buy) to $2000
(ShopNBC) to as low as $1500 online. I have used the exact model number in
all my queries. So what gives here? I need to find a newsgroup(s) where I
can get some advice this issue. Obviously I would welcome any advice I
receive from this NG.

Many thanks,

Peter.