This may be a display device problem. Please post your system info. You can get it from the Help menu inside MC. What display card (or integrated display device) do you have? Have you kept Windows and the device drivers up-to-date?
What exact display options have you set? Particularly, have you set MC to change the full screen display resolution? (The "desktop resolution" setting should be fine if you want to always use 800x600.)
Does it work if you connect the PC with a standard PC monitor instead of TV?
Is this because we are using ycbr
Do you mean a software setting for the color space (YCbCr) or the physical connection type (component YCbCr) ?
If it is a software setting where did you set it and have tried any other option?