One of our provider providing us channel through Domestic STB.These are sports channels and very famous in the region.

we are taking out of STB in HDMI and converting in SDI signal through black magic convertor. provider is providing dual language on the channel but we can broadcast only one at a time.
The language which is selected on STB same will be broadcasted.

Does any one have any suggestion how to get the dual language from domestic STB.