I have LG 55UM7450PLA LED TV. It came out of the box with firmware v04.70.20. and was working fine. After I installed the new firmware from official LG website the picture degraded. In fact not so much the picture in general but processing of text, logos, subtitles etc. Like some bad and heavy picture compression is going on. I did reset the TV and cold reboot and tried with all possbile picture combinations but nothing helped. Now Im stuck until the next official update because it seams that LG uploaded the TEST/BETA firmware! This info I found out here.
