it or not, the beloved christmas special is now in its 50th year. do you realize that special has been around all most 50 years. you are making me feel old. reporter: that s right. charlie brown turning the big 5-0. good grief. charlie brown feels depression trying to find deeper meaning to life. i won t let all this commercialism ruin my christmas. reporter: tv historian says interestingly the special known for frowning on the commercialism of the holidays was sponsored by coca-cola. check out the now deleted scene of linus running into a coca-cola sign and look at original closing credits. popularity of a charlie brown christmas spawned dolls, toys and above all, charlie brown christmas trees. what do you call it? charlie brown christmas tree. blanket around it. you knew that was linus blanket. of course. for adults and kids alike, the magic of the special comes