The value of tmnxMcPathBdlChlVdoChlType specifies the video
channel type. It identifies whether the video channel is
High Definition (HD), Standard Definition (SD) or
Picture-in-Picture (PIP).
When this object has a value of 'inherit', video channel type is
inherited from the value of tmnxMcPathBdlVdoChlType which specifies
the video channel type at bundle level.