47" Vizio 3D TV 1080p, color went out - $50 (Kennewick)

I have a Vizio TV that I'm not happy about letting go because we like having 3D movie night.
However, I don't know how to fix a TV.
The TV menu shows color like normal, but when we play anything plugged into HDMI, it plays movies and shows in black and white.
Someone who knows how to fix this can get a good deal.
I'll throw in a box of 3D glasses.
Stored in a different box for moving.
Text only 5o9 and 91o and 974o