I am setting a raspi as a media unit in the slumber room, connected to a 40" Samsung TV.
My first installation was Raspbian, and everything appears to work fine, including (hdmi) sound.
My next trial is/was xbmc. I have installed and updated - already experienced 3 lockups of the system while configuring
I've not got to the stage of testing video/sound yet though.
But... at least you know Raspbian is functional with Samsung TV's. I'll update when I have progressed further with my testing.