I was 8 years old, actually closer to 9, when Friday the 13th first hit theaters. And as badly as I wanted to see it, the closest I could get was hearing first person accounts of how terrifying the film was.
So I always kinda wondered what it must have felt like to see the one that started it all in theaters. What would the atmosphere have been like, and how animated would the audience have been? Needless to say, I hit up YouTube, and I found a pretty cool video that the user AlwaysSunnyinSac created.

The video which can be see below is more or less an imagining to what it would have been like to see F13 in theaters back in 1980 complete with laughter tracks, and audience reactions dubbed in to some of the final ending scenes of the film. Hope you guys enjoy this and Happy Friday the 13th!!
http://youtu.be/xapWuLZUyDQ