Try the Logitech K400 which is the usual solution. Sorry but I've yet to find Samsung to reveal if it works on ANY model. They don't want to appear supportive of any non Samsung solution. Sometimes they won't reveal which Samsung device to use either. Confounding at times.
Bob
I know this TV can accommodate a USB keyboard and mouse, but will it accept a wireless combination of the two that plugs into USB? I'd prefer to keep one of the two USB ports free for other things. A friend has a Logitech set he no longer needs and I can get it for the right price (free).

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic