  The Transiting Exoplanet Survey Satellite (TESS) is recording short-cadence,
high duty-cycle timeseries across most of the sky, which presents the
opportunity to detect and study oscillations in interesting stars, in
particular planet hosts. We have detected and analysed solar-like oscillations
in the bright G4 subgiant HD 38529, which hosts an inner, roughly Jupiter-mass
planet on a 14.3 d orbit and an outer, low-mass brown dwarf on a 2136 d orbit.
We combine results from multiple stellar modelling teams to produce robust
asteroseismic estimates of the star's properties, including its mass $M = 1.48
\pm 0.04 \mathrm{M}_\odot$, radius $R = 2.68 \pm 0.03 \mathrm{R}_\odot$ and age
$t = 3.07 \pm 0.39 \,\mathrm{Gyr}$. Our results confirm that HD 38529 has a
mass near the higher end of the range that can be found in the literature and
also demonstrate that precise stellar properties can be measured given shorter
timeseries than produced by CoRoT, Kepler or K2.
