I have recently come across a new 3d fury gadget. I'm now undecided as to wether to sell it or use it. Problem is I'm not exactly sure what it is, or wether or not they work. I've seen similar gadgets on ebay for 20/30 quid which doesn't seem right if thr tech can really upgrade any tv to 3d. Hopefully someone can offer a simplish explanation I'm a newbie to this.