IPTV has a much more different broadcasting concept than the regular television, because the transmission is not from a single channel. You can receive the broadcast, provide live feed and use video on demand at the same time. It also is possible to write interactive applications, beside the television broadcast and advertisements. An example for this is Joost TV, which is broadcasting over the internet in a similar way. By using widgets, you can chat with other Joost TV users, advertise and enable the advertisement to reach viewers over the internet. It is even possible to consider some information on the broadcast and make other advertisements to work with it. If another broadcast you might be interested in comes on, information about it is transmitted to your window. This is achieved with little widgets and pop-ups.