Online TV startup Zattoo has opened up its beta software to UK users for download since running for a closed user group since July last year. So far it has about 1.7 million registered users (in total), two thirds of whom use it regularly to watch TV on their PC. The interesting think about Zattoo is that it broadcasts full-blown TV channels from partners including the BBC, Bloomberg, France 24, and Channel 4 in the UK. Zattoo is free of charge to users and generates revenues through advertising and subscription fees. In its home territory of Switzerland it’s had a good reception from users, however, it is limited to how it rolls out across territories as it has to negotiate rights with each partner. However, more channels are expected in the next release early this year.