An digital pay TV services generate sufficient revenues to support the very costly project of installing a fully interactive multimedia broad band infrastructure? Broadly conceived, then the question is a particularly difficult one because what it really asks is; How to make a business case for a short term (five or ten year)?
Investment in a technological development, the commercial consequences of which will likely take a much longer time to be come clear then the time frame in which contemporary investors are accustomed to think much invest less. Since they are intimately connected, before responding to the narrow question, it might be useful to address the broader is sue.
