Check your speaker distance settings. Lip sync adjustment is provided because video processing can often create delays in the video signal, and the lip sync adjustment allows you to essentially "pause" the audio just enough to get back in line with the video. The only way I can think of for the video to be ahead of the audio is for the speaker distance settings (which create audio delays to compensate for the speed of sound and different distances from speakers to the listening position) to be set too high (creating too much audio delay). This also fits with the problem occuring on both video sources, since it is a global system setting.