FRITZ!Box 6590 Cable Service - Knowledge Base
FRITZ!App TV does not display HD channels
Although HD channels are found when you perform a channel search with the FRITZ!Box's user interface, FRITZ!App TV does not display them. FRITZ!App TV's channel list only contains SD channels.
1 HD channels are currently not supported
Currently, you cannot use FRITZ!App TV to play HD channels. We are currently investigating whether it is possible to technically implement this function. If so, we will incorporate this in a future version.