VideoSearchXL had stopped working when YTAPI changed their service and requested far too much to get trailers.
Another method was found to get Youtube videos, and then a further method found to get Vimeo.
A method to get dailymotion has not yet been found.
So the player has been limited to Youtube and Vimeo.
It should be noted that professional posts such as Trailers and Vevo have moved over to DASH for HD. The X3D can only deal with mp4, and so uses the highest quality mp4 offered. That is rarely HD for professional videos.