Reuters: Sony has launched its PlayStation Vue web video service in three cities, targeting customers looking for cheaper alternatives to cable with packages starting at $50. The web and cloud-based television service, which allows users to access live TV and on-demand video, has been in test mode since November. Sony joins several new competitors in online video services with one of the largest packages of channels. Vue will be available initially on PlayStation 4 and PlayStation 3 video game consoles in New York, Chicago and Philadelphia, then expand to other cities and for iPad users shortly.