An awesome way to smoothly move from one segment of your Children's Church to the next is with Video Transitions.  It is a fun way to introduce each skit or puppet skit.  It also makes your service much more fluid, filling in the small empty spaces that usually occur in between segments while you are going back stage or preparing for the next skit or lesson.  Video Transitions are short video "intros" and "exits", similar to the intro of a television sitcom. 
Click here are some examples of video "intros" and "exits" we have used in Children's Church.
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