  Powerful radio-galaxies feature heavily in our understanding of galaxy
evolution. However, when it comes to studying their properties as a function of
redshift and/or environment, the most-detailed studies tend to be limited by
small-number statistics. During Focus Meeting 3, on "Radio Galaxies: Resolving
the AGN phenomenon", SVW presented a new sample of nearly 2,000 of the
brightest radio-sources in the southern sky (Dec. $<$ 30 deg). These were
observed at low radio-frequencies as part of the GaLactic and Extragalactic
All-sky MWA (GLEAM) Survey, which is a continuum survey conducted using the
Murchison Widefield Array (MWA). This instrument is the precursor telescope for
the low-frequency component of the Square Kilometre Array, and allows us to
select radio galaxies in an orientation-independent way (i.e. minimising the
bias caused by Doppler boosting, inherent in high-frequency surveys). Being
brighter than 4 Jy at 151 MHz, we refer to these objects as the GLEAM 4-Jy
(G4Jy) Sample. The G4Jy catalogue is close to being finalised, with SVW
describing how multi-wavelength data have been used to determine the morphology
of the radio emission, and identify the host galaxy. In addition, the MWA's
excellent spectral-coverage and sensitivity to extended/diffuse emission were
highlighted. Both of these aspects are important for understanding the physical
mechanisms that take place within active galaxies, and how they interact with
their environment.
