I have a magnavox model FP5240-W104 that has no way to get a self-generated convergence grid. This model is apparently different from other similar Magnavox TVs in that respect. I need to find a Philips/Magnavox part# ST4124 or ST4123 which is/are convergence template overlays that you may tape to the front of the screen to do convergence adjustments. Does anyone have one? I have searched and researched suppliers and Philips with no luck.