If the HTS has HDMI inputs and one HDMI output you could connect the sat box and BD to the HTS and the HTS to the TV (all with HDMI).
If not then the sat box and BD connect with HDMI cables to the TV..
How you connect the HTS to the TV depends on what audio outputs your TV has and what inputs the Bose has. That would be model dependent. Options would be HDMI-ARC (if both the Bose and TV support that), digital audio out (coax or optical), or analog/headphone.