The picture of 432 lines letterbox is taken from the [katheto] of low passage infiltration of initial 576 lines, and additional the [ypsiperato] infiltration is transmitted in the [ypometaforea] 4.43MHz at duration the 144 black lines, that allows in the PAL+ of receptor in order to [anadimioyrgisei] a the 16/9 picture of high resolution. So that it is taken the biggest breadth of area for brightness (5 MHZ) and in order to decreases diagonal-colour and diagonal-brightness, the phase of [ypometaforeas] two [sympeplegmenon] lines of successive sectors is reversed. This process, known as “colorplus,” Panasonic TV allows (with the help of memory of frames in the receptor) her cancellation diagonal-brightness near adding the high part of spectrum of two successive frames, and his reduction diagonal-colour with their abstraction. A compensation of locomotion is required in order to it avoids the hand made objects that are imported with the process colorplus in the fast moved objects, which, that are added the need for a memory of frames, contribute in the relatively high cost of running PAL+ of receptors. The PAL+ system leads to a subjective quality equivalent with d2-MAC in receptor 16:9 to the good reception terms (high proportion of signals/noise). So that is informed the receptor for the form of program that is radio Panasonic TV transmission (4: 3 or 16:9), making signal pieces (WSS: the wide screen that makes signal) and the additional information (healthy way, etc.) they are added in first half line 23 (fig 1.8), which allows in the receptor in order to it adapts his form of demonstration. Signal WSS can also be used from usual PAL 16/9 receptors in order to it simply modifies the [katheto] breadth according to form, which is reported sometimes as “PAL+ of poor person. ” After this import (potentially no too much big), now effort are described as much as possible more simply the beginnings that have allowed in the establishment of new digital television models and the services .