  We consider the form factors for the radiative semileptonic decays
$\bar{B}(v) \rightarrow D^{(*)}(v') \ell {\bar \nu}_\ell \gamma$ in the
kinematic region where the photon momentum, $k$, is small enough that heavy
quark symmetry (HQS) can be applied without the radiated photon changing the
heavy quark velocity (i.e., $v^{(\prime)} \cdot k < m_{(b,c)}$). We find that
HQS is remarkably powerful, leaving only four new undetermined form factors at
leading order in $1/m_{(b,c)}$. In addition, one of them is fixed in terms of
the leading order Isgur-Wise function in the kinematic region,
$v^{(\prime)}\cdot k < \Lambda_\text{QCD}$.
