Cristian Baldini contributed to the iptv-org/iptv repository by enhancing the ar.m3u playlist, focusing on both feature development and bug resolution. He added the AlternaTV (720p) stream and updated its display name to improve user experience and channel discoverability. Addressing playlist accuracy, Cristian corrected a URL mapping issue between AlternaTV.ar and AiredeSantaFe.ar, ensuring each stream entry pointed to the correct source. His work demonstrated careful playlist management and attention to detail, utilizing m3u and playlist management skills. Through consistent commit practices and collaboration with repository maintainers, Cristian reinforced the reliability and usability of the AR channel listings for end users.