The Berenstain Bears' Christmas Tree
... that Stan and Jan Berenstain had to provide 20,000 sketches of the Bear Family before animators began working on The Berenstain Bears' Christmas Tree, their first NBC television special?
... that <a href="./Stan_and_Jan_Berenstain" id="mwBN8" rel="mw:WikiLink" title="Stan and Jan Berenstain">Stan and Jan Berenstain</a> had to provide 20,000 sketches of the Bear Family before animators began working on <i id="mwBOA"><b id="mwBOE"><a href="./The_Berenstain_Bears'_Christmas_Tree" id="mwBOI" rel="mw:WikiLink" title="The Berenstain Bears' Christmas Tree">The Berenstain Bears' Christmas Tree</a></b></i>, their first NBC television special?