Philips have launched a new range of HD TVs including an Eco range and what they dub their 'Ultimate' range. Sony has AGAIN released more HD TVs. This time it's the S4000 series headed for North America. All these new TVs are LCD based and some have up to 120Hz, making them great (arguably) for gaming. Both the Philips and Sony models have a new curved frame design as well. gadgetzone.com.au reports.