When playing with wii the screen is black and white not in colour

If you connect your DVD player and Wii in the same type on input you may have a signal board issue.

Chances are your video settings are on pal/ntsc, and you're configured on the wrong one... Maybe this can be configured, but I think it depends on your version of the wii console, did you buy it on ebay?
However, I think that some homebrew applications could fix this, altought i'm not 100% sure

Access your TV's menu screen and be sure that your TV screen is expecting input from "AV" or "Video". If you have "S-Video" selected, this is the cause of why your Wii is playing black and white.

hello,
the problem could be from the colour setting of the television on the AV .
Go to menu on the remote to change the colour function from NTSC to AUTO.
Good luck

our wii turned black and white, and i fixed it by switching my AV onto AV1 setting, somehow it had gone on to AV25 and this had turned it black and white, so check out your AV menu options on your tele

Check if the tv has different types of AV settings, as this affects whether the wii plays in black and white or colour.

I read some of your old reports,Double clicked on the yellow av buton, worked a treat. Thanks.

Try plugging it into another scart socket, this sometimes happens when a tv does not support 60hz. the result is a screen that has no colour. You could try just plugging it onto the seperate av inputs. Most tv's these days have one scart that will work ok and in colour.

mabey its on the wrong av channel cause on my tv it has 1 in colour and 1 in black n white or change the scarts around

Possibly you've plugged the video into the component (RGB) portion of the input - this calls for 3 connectors (Red, Blue, & Green) and if you only plug one in from a composite it comes out grayscale. If you only have one video lead (yellow connector) make sure it is going to a composite connection which should also be yellow. Otherwise, more info is needed about your connections.