Define XML component in Brightscript?

I did try doing this with the video component, defining/creating it entirely from brightscript without a single XML reference. Now perhaps I did something wrong, but doing it this way resulted in a video that only played audio, didn't have any trickplay capability/bif files visible, and other issues.  The default video component when created in XML has about 40 separate children and features created with it by default that aren't present when you create it from brightscript only.