Where to Buy Generic Vesa Stand for TV

Hi all,

I recently acquired a 55 inch LCD tv, but it used to be mounted on a wall and I have no idea where the base is.

Does anyone know where you can buy a generic VESA base which can go on a regular TV stand (rather than being wall mounted)? Anywhere in particular online or in store? I had a look on Ebay but they were all from the US.

Thanks for your help!