You're doing a fine job of describing it, so no need to get frustrated.
When you get back home, feel free to post the model number of the TV and I (or someone else) will check out the manual and see if anything catches our attention. Also, please post the model number of the blu-ray player. I want to check if (a) that TV can be set to always output sound from the same input regardless of what you're watching and (b) if the Sharp player needs to have a setting changed to output audio over HDMI.