Samsung used to make one specifically for the televisions, but that wasn't done in 2009. There are lots of wall mounts available, and most of the ones on the market today are VESA-standard, meaning that the holes in the mount line up with the support mounting holes in the rear of the television.
I don't have any specific recommendations to offer, but there are several on the market.
Hi! I just bought the 46inch 8000 LED LCD TV and I am interested in a FULL MOTION wall mount and wanted to know which one is recommended.