Before proceeding, you must stop the Channel by deactivating the checkbox. Stopping the channel will also stop the playout.
A Channel uses a certain Colourspace which is used by the engine to "render" the final output. By default the correct color space for the defined output format will be selected automatically.
Stop the Channel by deactivating the checkbox in front of it. Stopping the Channel will also stop the playout engine and therefore the final output.
Select the Channel in the “Devices & Channels” list.
Click on the “Format” tab.
Select the desired output format in the “Output Format” drop-down menu.
Select Rec.601 for standard video playout
Select Rec.709 for HD or UHD playout
Activate the checkbox in front of the Channel to start it again and to take over the changes you just made.