Residuals in the half-mission TT power spectra after subtracting the Plik TT+tauprior ΛCDM best-fit model (blue points, except for those which differ by at least 2 or 3σ, which are coloured in orange or red, respectively). The light blue line shows the difference between the best-fit model obtained assuming a ΛCDM+A_L model and the ΛCDM best-fit baseline; the green line shows the difference of best-fit models using the ℓ_max = 999 likelihood (fixing the foregrounds to the baseline solution) minus the baseline best-fit (both in the ΛCDM framework); while the pink line is the same as the green one but for ℓ_max = 1404 instead of ℓ_max = 999; see text in Sect. 4.1. For the TE and EE spectra, see Fig. 40.