This video will explain you how to place infrared touch frame into a 40 inch sony LCD TV, the modificator, choose the sony lcd tv becouse the thin and suitable for iframe infrared touch.
Multitouch LCD TV - Infrared Touch Frame
This video shows an Infrared Touch Frame placed onto a 40" LCD TV. A basic overview is given, and some demo applications are tested. The touch frame, in sizes ranging from 24-200"
are available on the Peau Productions store (http://peauproductions.com/store/). Just attach the frame to a TV or Projector Image and you instantly have multitouch in up to 2,6 or 32 simultaneous touch points. Frames work on Windows and Mac OSX systems, and support TUIO, FlashTUIO and mouse driver interaction. Please see the Peau Productions website for pricing and other information.