What cables go from my 55 inch hitachi tv to connect on the back of the dvd player . I have two monster cables red and blue together and three cables red blue and green together.

use input cables ,connect to tv;s audio,vedio in to tv ,,from audio vedio out of b r player,,,,,go to source input option in tv with menu & select ur input option

There are three cables with which you can connect a DVD player to a TV.Since you have not mentioned both the TV & DVD model I will give you general info.
1) The oldest and the simplest connectivity is composite cable ( Yellow/Red/White )
Connect the DVD players composite out using this cable and connect it to the TV's AV input .
2) For better picture quality connect using component video cable if your TV has that socket at the back. Red/Blue/Green for video and another Red and White for audio.

Use three RCA cables, yellow, white and red to connect DVD player to TV as shown in the diagram below. Connect yellow to yellow and white to white. Connect red to red. Select on the TV, the A/V input where the DVD is connected using the TV remote control. Power on TV and DVD, place a disc in tray of DVD player and press PLAY.

You'll need a DVD player that has component outputs. The composite carries the entire video information, while the component sends the three different color signals separately. The red and white cables are output cables. No all DVD players have the component outputs.

Remove & re-seat the component video cables at both the TV and the DVD player.

If the problem continues, disconnect BOTH ends of the BLUE cable and the RED cable. Connect the BLUE cable to the RED jack at both the DVD and TV, and connect the RED cable to the BLUE jack ob both the TV and DVD. If the RED color comes back and the BLUE is missing, then replace the RED cable (the red cable is broken and will not pass the signal that it is connected to).

If all works, reconnect the colored cables to the corresponding colored jacks at both the TV and DVD player.

If the RED color still won't display, isolate the trouble to either the DVD player or TV by connecting the DVD to another TV w/ component jacks. If the RED is still missing, it is a problem inside the DVD player - if the RED displays, it is a problem with the TV.

Good luck!

You do not put your TV on any channel. DVD players need to connect to a TV with video cables and not a RF cable. This means 3 connection options on how your DVD player should connect to your TV. First, since your DVD player is NOT a bluray player, then HDMI connection is not needed. 2nd, the best choice would be component cables. These are the RED/GREEN/BLUE RCA connector that are on the back of your DVD player. They got into the input of your TV that has the RED/GREEN/BLUE RCA connectors. These are your video connector. Now, you need to connect the audio. Look for the RED/WHITE analog audio connectors out of your DVD player. Connector those to your AUDIO RED/WHITE input of the TV. Power on the DVD player and then power on your TV. Press the SOURCE or INPUT button on the remote for the TV until you see the DVD on the TV....The second option is the connect your DVD player up to your TV with composite video, YELLOW/RED/WHITE cable... 

It depends on what kind of inputs your TV has; here are a few of the most common, all of which your DVD player supports (best quality first):

1) COMPONENT VIDEO (Red, Green, Blue)
If your TV has three inputs for video colored red, green, and blue, this is your best bet for quality video from your DVD player. You may need to buy a component video cable from the store (somewhat pricey, but great quality) which consists of three cables (again, red, green, and blue) stuck together. Just plug the red/green/blue cables into their correspondingly-colored ports on both the DVD player and the TV.
That covers your video. To set up audio, you just need some regular red/white RCA cables. On the DVD player, plug the red/white cables into the correspondingly-colored audio out jacks NEAREST to the red/green/blue cable you used earlier for video, then plug the other end into the audio in red/white jacks on the TV.

2) COMPOSITE VIDEO (Yellow)
If your TV has a yellow input for video, just use a regular yellow RCA cable. Plug it into the yellow video-out jack on the DVD player, then plug the other end into the yellow video-in jack on the TV.
To set up audio, you just need some regular red/white RCA cables. On the DVD player, plug the red/white cables into the correspondingly-colored audio out jacks NEAREST to the yellow cable you used earlier for video, then plug the other end into the audio in red/white jacks on the TV.

3) COAXIAL JACK (Antenna port)
If your TV only has a coaxial jack that you currently plug your antenna or cable line into, you'll need to buy an RF modulater and a short length of coaxial cable (you can find these anwhere: Walmart, Radio Shack, etc).
Plug the RF modulater into an electrical outlet, then plug your antenna/cable line into the "antenna in" jack on the RF modulater. Take the coaxial cable that you just bought and plug it into the "antenna out" jack on the RF modulater, then plug the other end into the antenna/cable jack on the TV. The RF modulater should have a switch on it somewhere that sets either the number 3 or 4; depending on which number you pick, that's the channel that your TV has to be switched to to view the DVD player.
Now you're all set to connect to your DVD player. Just follow the instructions in section (2), only now you're going to plug your cables in the RF modulater instead of the TV.
(I hope this wasn't too confusing; it really is a lot simpler in practice than it is in explanation...)

Check the cable connections in the back, if it's a High Definition TV from your cable box, you will have three cables, red, green and blue. If one of the cables is in the wrong spot or is not connected (loose) you will lose color in the picture.

I have an owner's manual for that system and would be glad to copy the diagrams for you. Additionally, I think that you need red, blue and green wires from the back of the Koss to the inputs on the TV.