I have purchased the TY-CC20W for my Panasonic TX-L47WT50E. As already written several other reviewers, it is not cheap and the price / quality ratio is not the optimum image. The good interaction with the Smart Viera devices (easy installation, Skype works immediately) and the ultra-chic understated design make the ME but betting. For me, therefore, four stars. To solve the brightness problem that is addressed in several reviews, you should short the camera to connect to a Windows 7 PC and after the automatic installation of the drivers from the network in a Webcam application (eg Skype) call the video settings. Under 'Webcam Settings' then there is the possibility of the exposure to be set to 'Auto' (usually under the advanced settings in a second tab). After that, the camera adjusts the exposure time itself and also supplies in low light situations a good picture. Please DO NOT press the Skype app of Panasonic the 'Reset' button. He turns off the automatic exposure control and in the options of the Panasonic itself has no way to enable it again.
