Why is my TV displaying in black and white ...

Hello,

The reason for this problem might be very simple: You probably set the display frequency of the Xbox to 60hz while your TV can only handle a maximum of 50hz.

This often happens with older TVs that are not designed to manage such a frequency.

You can try to resolve this issue by adjusting the display frequency of the Xbox in the settings of your Xbox or the settings of your TV.

Hoping to have helped you,

Anakum