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button to open the application page. After the page is
displayed you can go back to the initial red button icon
state by pressing the red button again. You can toggle
between the red button icon mode and full UI mode
of the application via pressing red button. It should
be noted that the red button switching capability is
provided by the application and some application may
behave differently.
If you switch to another channel while an HbbTV
application is active (either in red button icon mode
or full UI mode), the following scenarios can occur.
• The application can continue running.
• The application can be terminated.
• The application can be terminated and another
autostart red button application can be launched.
HbbTV allows the applications to be retrieved both from
broadband or broadcast. The broadcaster may enable
both ways or one of them. If the platform does not have
an operational broadband connection, the platform
can still launch applications transmitted on broadcast.
The autostart red button applications generally provide
links to other applications. An example of this is shown
below. The user then can switch to other applications
by using the links provided. The applications should
provide a way to terminate themselves, usually Exit
button is used for this.
Figure a: Start bar application
Figure b: Electronic programme guide application,
broadcast video is shown on the left bottom, can be
terminated by pressing 0.
HbbTV applications use keys on the remote control to
interact with the user. When an HbbTV application is
launched, the control of some keys are owned by the
application. For example, numeric channel selection
may not work on a teletext application where the
numbers indicate teletext pages.
HbbTV requires AV streaming capability for the
platform. There are numerous applications providing
VOD (video on demand) and catch-up TV services.
The user can use play, pause, stop, forward, and
rewind keys on the remote control to interact with the
AV content.
Note: You can enable or disable this feature from the
More menu in Settings>System menu. Depending on the
model of your TV and the selected country option in the
First Time Installation this feature might be available in the
Settings>System>Privacy Settings menu instead of the
Settings>System>More menu.
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