If you aren’t familiar with the story the execs at CBS absolutely HATED two aspects of the special.
1) Linus reading the Nativity story from the Gospel of Luke
2) The jazz soundtrack by the Vince Guaraldi Trio.
They made an edited version without the Gospel reading and different music and showed it to Schultz. He threatened to walk if they did not stick to the original version, which they eventually did.
And these were TV executives in 1964. They are way, way worse now.
The jazz soundtrack by the Vince Guaraldi Trio.
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That is the best!