I'm preparing to purchase a DVI-HDMI cable so that I would be able to transmit video from my PC to my TV. I currently have a stereo system that is set up with the TV set. 

My question is, after connecting the PC and TV, and playing a movie on my computer, I know the video will be transmitted, however will the sound ALSO be transmitted and played by my TV? Or would I have to connect my stereo system directly to the computer?