Just bought a brand new 40" Cinema something or other from Video Only and it did the same as everyone else here - distorted echo after an hour or so, and does it with just TV, as well as DVD, Playstation, XBox, and Wii. We hadn't researched this yet and took it back and exchanged for another one just like it. What do you know, same issue. :( Too bad... slightly older Regza models we've experienced didn't have this issue. Grrr Toshiba, Grrrr.
C in Kirkland, WA, January 2010