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