I'm considering buying a Playbar but I've just read (in a review) that not all TVs with optical out will pass digital audio from other inputs out through the optical to the Playbar. I have an LG LV5400 with optical in/out and have checked the manual but don't see any useful information there. Basically, I need to know that I'll get the full audio experience including Dolby digital and stereo. If you know the answer to my question, please let me know. Thanks!