shall be modulated. It contains a set of flags as defined in
:ref:`modulator-txsubchans`.
- .. note:: The tuner ``rxsubchans`` flags are reused, but the
+ .. note::
+
+ The tuner ``rxsubchans`` flags are reused, but the
semantics are different. Video output devices
are assumed to have an analog or PCM audio input with 1-3
channels. The ``txsubchans`` flags select one or more channels