IBM is very active in ITV, participating in trials at Bell Atlantic , Cox Cable , Okazaki City, Japan , and Hong Kong Telecom. This paper briefly describes the ITV system deployed in the Hong Kong Telecom trial. The system as described is capable of presenting interactive video applications to several hundred simultaneous viewers. The conclusion of the paper will discuss work that is underway to scale the system up to handle a considerably larger number (thousands) of customers. The following sections will discuss the types of applications the system is designed to handle, will describe the end-to-end architecture, and will discuss some of the major components in more detail.