Prince Harry and Meghan Markle accused of copying Kate Middleton.
Sussexes release charity video just after Kate shares one about a baby bank visit.
Royal expert Richard Eden questions the timing of the Sussexes' video.
He suggests they might be trying to compete with William and Catherine's video.
The timing highlights a clash between the two couples.
Sussexes will spend Christmas in California, away from the Royal family.
King Charles and family are traveling to Norfolk for Christmas.
The video releases raise questions about a possible rivalry.
A Christmas separation adds to the ongoing family dynamics.