It very likely they have standard mounting, and with universal mounting bracket you get in the market place, you should not have any problem.
I am considering a Samsung tv model UN46B7000 and will mount on wall. Because of tv location in the room, I want to install using an extendable, swivel-type arm bracket. I see Samsung has a special wall mount for this TV. Does anyone know whether this tv can be attached to the type of bracket I am considering?