Why did my Philips 5403D replaced by this model. Very good picture and sound. Not tinny like my former unit. A plus for ever. With me adventitious addition an externally connected system via boxes. I myself use as additional wireless headphones connected via the corresponding lateral bush and attached here transmitter unit of headphones. Wonderful. No distortion, no offset reproduction. Once set the headphones volume in the TV menu I can even readjust to the sides of the headphones. Wonderful. As I mentioned above Philips'm used to for me a good menu. Yet it is not as usual or accustomed, but it is easy to use. Internet connection in a home network via Wi-fi very good and quick to install and configure. The transfer of data within the network, here from a PC, excellent. By means of playable files, such as from Sony PlayMerories Home software on the PC are detected, the data on your TV and you can watch pictures and MP-4 video. What I do not understand in the existing assessment here is that you criticized the pros or Back click of USB data. Either I do not understand what is meant, but a click on the Return button and it changes to the list of existing readable Dateinen. USB sticks, personally here with me and Philips Itenso be recognized. Likewise, any mice and keyboards from different manufacturers such as Gigabyte, Logitech, are detected. Because I can get my TV channels and, indeed, the favorite of a connected receiver, I can not detect any arge delay here. Is corresponding station is found, zaps you to, jumps immediately to television and has synchronized the sound. Also, switching of channels using the numeric keys. As BSP I lead, as comparison, a Toshiba 40L5443DG and a Panasonic to. To differences would have to identify the laboratory values. For me and were image reproduction, here 400 Hz, and the playing of data within my network important and excellent Internet connection. The complete operating manual is available from the TV or you fetches corresponding of the Philips site. A complete guide is no longer available. What is supplied to read is a safety notification and a leaflet to assembly instructions and connections and accessories supplied. All in all, from me a strong buy recommendation.