In TV/Movie Holiday Special history.
As a kid I remember covering my eyes when those scenes came on.
Today, adults and children view Rudolph the Red Nose Reindeer commercial-free, thus dampening the devastating effect of having to "wait it out" (through a string of ads) to find out what would happen after those menacing scenes when "Bumbles" (as Yukon Cornelius knew him) appeared -- peering over the snow-capped mountains, leaving giant footprints in the arctic plain and most of all the climactic cave scene.
I'm not saying I'm still scared,
But I did get a chill after I took this photo at night.