I use the QAM tuner to get HD. I just got a 5.1 surround system and I noticed tonight while watching Jimmy Fallon that the main dialogue audio was only coming out of the right speaker. Does anyone know why? When watching Leno it seemed like it was only in stereo, but Letterman gave the full 5.1 experience.
Edit: nevermind, it fixed itself, must have been having problems in the beginning of the show.