No sound, black & white picture

my TV has a half black & half white screen & half of the TV is showing the picture including the normal sound,what can I Do,?

More info would be nice. Are you using HDMI or Component cables. If it is component cables (red, blue, green for video white and red for audio) Check your red and blue connection. Green alone will give you a black and white picture.
If you are using an HDMI cable, replace the cable to see if this changes anything or if you have another tv swap cables to see if problem stays with tv or moves to another tv.

tried to hooked up with an air antenna. if you can not get any channel and just a white raster or snow, it could be the tuner get fried.

Look for more bad caps, sound like on video board also problem

The television may be repairable most tv shops ask a $20 fee to look at and tell youyes or know as to how to get rid of it if you dont want to bother with it all take it to your local dump and pay $10 for correct disposal.
Honetly to me it sound like thepower board was hit and can be repaired,

Your tv cable has shorted out. Replace the cable first before thinking the worse. Worse case is the sound board on the wii is bad... but can be ordered from places like wiiparts.com and risingsonltd.com

If you need further help, reach me via phone at https://www.6ya.com/expert/eric_5b00a5ceab1c0cd2

Sounds resonable. My screen also went black after thunderstorm. Very interesting! Thanks!
But what to do now?

there is a possibility that the semiconductor in power supply side damaged due to electrical surge. more likely the STR IC of Diodes.

The half picture is a verticale problem. This is difficult to repair. Send to a repair shop.

Is there sound??