This document summarizes the challenges of implementing IPTV in an ISP network based on a presentation. It discusses 1) the lack of local references and experience, 2) issues with choosing between multiple technology options, 3) multivendor challenges, 4) traditional multicast not fitting the needs, 5) platform requirements, 6) difficulties testing without a live network, 7) integrating third party content, and 8) stringent latency and jitter requirements. It also covers challenges dimensioning the network and sharing experiences gained.