50 plasm tv hen hooked up to dvd it s only showin in black and white

first check color level setting on the tv when on av source input. double check input you are using, yellow video input (not green)
then try another device in that same input, then try the DVD player on another tv. The problem will be either DVD player or incompatibility or bad main board in TV, but usually a DVD or compatibility problem(cheap DVD player)

Which input on the TV and which output on the DVD player are you using? HDMI is the best and easiest. Next is standard video plus audio (3 leads, yellow - video, red and white - audio). If you are using the component input, you can get B&W if you have the leads incorrectly connected. If you're going from component to video in, you might have the same result, I'm not certain. I hope this helps you resolve your problem. Let us know.

look on the back of the television and the DVD player, there should be a SCART socket and/or red, white and yellow AV sockets, either use a SCART lead and connect it to the SCART on the DVD player and the TV.Or use an AV lead with 3 auxiliary shape connectors and match the colour of each connector with the female sockets on both the TV and the DVD player instead of using the other component connections.

I expect your new TV is looking for an S connected signal at least. You are connecting it using AV leads? Can you configure the TV to AV input instead of S video or Y-C?

The S-Video "holes" the tv and the dvd player each have a S-Video.Hook it up with a one black video cable to the S-video to the hole in the tv and the other side to the S-Video in the dvd player.U have a RCA cable have 2 plugs lead each sides have 2 connections one RED,one White lead connections. Plug that RCA cable 2 connections in INPUT holes in the Tv ,and the other sides 2 connections one WHITE,ONE RED to the DVD player for sound.

I bet it's a DLP TV correct?
This symptom would indicate that the color wheel has flown apart. Which results in a monochrome only image.
Color wheels are expensive and need to be replaced by a qualified service person.

Try using a S-Video cable if your VCR has the connection. Otherwise, use a RCA composite-video cable on one of the AV inputs of the TV. The cable has a Yellow, Red, White color, the same as the jacks it goes in.

this could work unplug everything hooked up to it and leave it for 2 days then hook up the dvd and switch on it should detect it via the scart lead..good luck

what is model of your dvd you want to connect..?

There some thing that you had done to get black and white on your tv with the dvd ,check your connections.if the connections are properly connected then the tv could be having a problem in the video input, have a tech look at it.