Britain's three biggest broadcasters, the BBC (its Worldwide unit), ITV, and Channel Four have agreed to set up a video-on-demand Internet service that will contain more than 10,000 hours of their programs. The service, curiously titled Kangaroo, will provide some programming via download, other programming via streaming. Some programs will be free. Others can be purchased. Still others can be rented. In a joint announcement, the three companies said that they plan to launch the service next year but gave no specific target date. Reporting on the agreement, today's (Wednesday) London Financial Times commented that it "represents a giant leap for the traditionally combative broadcasters as they come to terms with changing customer behavior and the growing importance of on-demand content."