yes i have three changhongs....along with multiples Sony both normal and smart...
changhongs are 32,40 and 55...both smart...Alhamdolillah working fine till 2 years
i play movies directly on them through USB... and sound is directed to DTS through digital link decoding both DTS and Dolby XXXX
reception is okay, picture quality is sharp and natural, offcourse not at par with sony etc,..
they are on most of times and work okay,