Are you flying WBC or Y? I just did LAX-NRT-HKG-NRT-LAX in WBC and the AVOD was working just fine on all legs. The WBC seats are almost lie flat and worked just fine for me. The service and food was good and I had no trouble sleeping most of the way to NRT. In Y there is no AVOD it's the old screen on the wall system. If you're going WCB to China you won't have any problems.