Switching To A HD TV

Lately I've been trying to talk my wife into getting a new HD TV. They've come down alot in price and to be honest with you I'm dying to watch sporting events in HD. Any of the golf tournaments especially the Majors would be awesome as well as any hockey or football. The last advantage I tried to tell her is we'd be reducing the amount of wires (which she hates) our TV would have if we got a HD TV. I told her how HDMI cables would replace all the wires we have going on now. One HDMI connection replaces 3 video connections for high definition video I told her. I need to work it a bit more it seems.