@unclem LCD screens that size will be very hard to source. If you do find them, the cost for the panel and shipping will most likely cost more than a new TV.
To try and find a panel, you need to remove the back cover form the TV. There will be a label on the back of the LCD that tells you who made the LCD and what the exact model is. Use that information to to an online search. See what you can find.
The only other way, and this is difficult since Vizio uses a hodgepodge of parts, is to purchase a TV (exact same model) with a good screen but is otherwise broken, as a donor. Harvest the screen from that. The trick here is that is has to be the same panel version and all so that you know it is compatible with your boards etc.