Zattoo is a RIA [Uhm, just call it a program] that let’s you watch TV on your Compu without extra hardware [PCI tv-card] or a subscription to a commercial service. Zattoo is currently focussed on European channels and licensed content, and it’s completely free.

I was disappointed when I realized that I can’ watch BBC2 or Canal+, because my IP address is recognised as being German, and legal regulations prevent us to watch programs we probably haven’t payed broadcasting fees for. Maybe you can bypass this limitation using an Open Proxy Service, see the link below.

On the other hand, it’s just as simple as switching on the Telly.

Zatto is based on peer-to-peer technology, just like Hobnox, Pando, Joost: or Miro. In a Peer-to-Peer TV system, each user is simultaneously downloading the program to watch it, but also uploading the video stream to other users. This way, all users contribute to the overall bandwidth of the service. The streams are usually slightly delayed to the original sources. But the video quality is better if there are more users, which makes powerful servers farms needless.

Zattoo itself provides very smooth streaming quality and might be considered the service experts were waiting for – due to it’s simplicity.

Check the links for more information:

• Open proxy Services
• Quick summary on popular TV streaming services on ReadWriteWeb
• Interviewing zattoo.com‘s co-founders

Zattoo delivers live TV legally, just like a cable network. Presently Zattoo doesn’t create its own channel from archival contents, nor do we yet carry user-generated content. Instead, we work with broadcasters to re-distribute their content simultaneous, unaltered, and unabridged. Compared to Joost, we provide live TV viewing instead of archival content delivered on-demand.

Sugih Jamin, Chairman and Co-founder of Zattoo