Analysis of the CzeV1254 system. Left-hand side: Light curves of both disentangled pairs, A and B, based on the TESS data (residuals given in the bottom plots). Right figures: ETV diagrams of both pairs as they revolve around a common barycenter. Full dots stand for primary eclipses, and open circles for the secondary ones. Green symbols represent the TESS data, and red ones our new dedicated observations. The remaining symbols are the other photometric surveys.