Not sure what you currently have, but here is a brief description, assuming current equipment with HDMI connections. Given your question, I will try to keep it very simple. You should provide more information on exactly what your issues are.
You start with a surround sound receiver, sources (TV and BluRay/DVD), and speakers.
The receiver is the core. It has inputs for a DVD/BluRay player and for your cable box, through HDMI cables. So, connect your BluRay and cable box to the receiver through HDMI cables. You can get cheap HDMI cables through MonoPrice.com if you do not have them. Do not pay the big box store prices.
The receiver will output a video signal to your TV, through HDMI, and audio to your speakers.
Video from the receiver to the TV goes through HDMI. The receiver will switch the input to the TV as you change sources using the receiver remote.
Speakers connect through normal speaker wire, except for the sub-woofer, which typically uses a RCA connector type cable.
For audio you typically have 5 speakers and a sub-woofer, all connected to the receiver. The center, left and right speakers provide the main front sound, while the 2 back speakers (surround speakers) provide secondary effect sounds. The front and center speakers are the most important. There is also a sub-woofer which provides the low frequency sound. It also connects to the surround receiver.
The receiver has connections for all of the speakers. The front, center and surround speakers are through normal speaker wire. The sub-woofer typically has its own power, so it connects from the receiver through a cable with RCA type connecters.
So, you need a surround receiver, a DVD/BluRay player, 5 speakers and subwoofer.
I would suggest a BluRay player rather than a DVD player. It will play both BluRay and DVDs and the cost of an entry level BR is not that much more than a DVD player.
That is pretty basic. If you have specfic questions, please ask.
You start with a surround sound receiver, sources (TV and BluRay/DVD), and speakers.
The receiver is the core. It has inputs for a DVD/BluRay player and for your cable box, through HDMI cables. So, connect your BluRay and cable box to the receiver through HDMI cables. You can get cheap HDMI cables through MonoPrice.com if you do not have them. Do not pay the big box store prices.
The receiver will output a video signal to your TV, through HDMI, and audio to your speakers.
Video from the receiver to the TV goes through HDMI. The receiver will switch the input to the TV as you change sources using the receiver remote.
Speakers connect through normal speaker wire, except for the sub-woofer, which typically uses a RCA connector type cable.
For audio you typically have 5 speakers and a sub-woofer, all connected to the receiver. The center, left and right speakers provide the main front sound, while the 2 back speakers (surround speakers) provide secondary effect sounds. The front and center speakers are the most important. There is also a sub-woofer which provides the low frequency sound. It also connects to the surround receiver.
The receiver has connections for all of the speakers. The front, center and surround speakers are through normal speaker wire. The sub-woofer typically has its own power, so it connects from the receiver through a cable with RCA type connecters.
So, you need a surround receiver, a DVD/BluRay player, 5 speakers and subwoofer.
I would suggest a BluRay player rather than a DVD player. It will play both BluRay and DVDs and the cost of an entry level BR is not that much more than a DVD player.
That is pretty basic. If you have specfic questions, please ask.