The first thing you would need is your cameras to be on the most recent firmware. This feature was added to our camera line in early to mid 2019 so getting the most up to date firmware is the first thing to do. Next, adjust your rotary dial on the back of your camera accordingly. The new chart for the rotary dial including broadcast framerates is available here.  Be sure to reboot your camera after changing this setting. Also be aware that none of the 3G SDI signals work with Black Magic Design Hardware. So 1080p50, 1080p59.94, and 1080p60 do not work into BMD equipment.