  We derive the capacity region of the state-dependent semideterministic
broadcast channel with noncausal state-information at the transmitter. One of
the two outputs of this channel is a deterministic function of the channel
input and the channel state, and the state is assumed to be known noncausally
to the transmitter but not to the receivers. We show that appending the state
to the deterministic output does not increase capacity.
  We also derive an outer bound on the capacity of general (not necessarily
semideterministic) state-dependent broadcast channels.
