The speaker, Christoph Masio, discusses the challenges of distributing multicast channels to third parties in a broadcast business. He explains how multicast channels are typically distributed using multicast service reflection in switches or using devices like DCM or DVBLAST. He also explores the use of open source software and virtualization, specifically SR-IOV, to address these challenges. He discusses workarounds for issues such as packet reordering and multicast filtering limitations in SR-IOV, including the use of different drivers, VLAN mirror, and egress mirror. He concludes by noting that while multicast in virtualized environments can be challenging, solutions like SR-IOV can provide direct network card access and improve speed, but also require careful configuration and consideration of limitations.