Sorry if this is not the way to post a question. My Chromcast works fine when plugged into the TV. However, it seems that only the TV speakers can be used in this case. This defeats the point of having a home theater (Samsung HT - 1250). First, is this the case (i.e., HDMI doesn't go from TB to theater box, just Box to TV)? Unfortunately, the box does not have a HDMI-in plug, but if it did, could Chromcast work through the box, or does it have to be connected directly to the TV? Somewhat specialized questions, but inability to get the benefits of an expensive home theater setup is obviously going to delimit the attractiveness of a $35 add-on, regardless of content upgrades.