  We analyze a cosmological model featuring an interaction between dark energy
and dark matter in light of the measurements of the Cosmic Microwave Background
released by three independent experiments: the most recent data by the Planck
satellite and the Atacama Cosmology Telescope, and WMAP (9-year data). We show
that different combinations of the datasets provide similar results, always
favoring an interacting dark sector with a $95\%$~CL significance in the
majority of the cases. Remarkably, such a preference remains consistent when
cross-checked through independent probes, while always yielding a value of the
expansion rate $H_0$ consistent with the local distance ladder measurements. We
investigate the source of this preference by scrutinizing the angular power
spectra of temperature and polarization anisotropies as measured by different
experiments.
