Operating Instructions for the MCA DiscoVision PR-7820 System (side 1 only)
Found this on the dead side of Slap Shot! From 1979 hosted by J. D. Cannon, this is how to use one of the first industrial laserdisc players. I don't have side 2 unfortunately since this was recovered from a movie's dead side.

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The $580 Million Vinyl Movie Disaster (Selectavision)

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Genlock, Timecode, Wordclock -- What Are They? Do I Need Them? Are They Interchangeable?

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Oddity Archive: Episode 190.5 – Ben’s Junk: Industrial Laserdiscs/Anderic (Repro) Service Remote

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How To Use Discovision

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Laserdisc Collection| A One Of A Kind Format

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How Light Travels Without Moving: The Feynman Reality Check

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Chevrolet Citation Industrial Films, 1979 (Discovision Dead Side)

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Leonard Nimoy Demonstrates the Magnavision Videodisc Player (Full Laserdisc!)

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The Incredible Machine (1968)

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Pioneer LaserDisc - How It Works with Don "Mr. Wizard" Herbert

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Oddity Archive: Episode 170.5 – Discovision/Laserdisc Quirks (An Informal Discussion)

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Jim Butterfield Commodore 64 Training Tape - FULL Length C64

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Laserdisc - Why It Ruled (And Still Does)

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RCA Video Monitors: The Future Is Now (1983)

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Dailymotion - ABC's 20 20 on HDTV - 1989 - part 1 of 2! - a Film TV video.mp4

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We Bought a Giant Movie CD Player and it’s AMAZING - Pioneer LaserActive CLD-A100

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What Will We Find On These Old VHS Tapes? Will They Even Play???

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Bell System - Tools of Telephony (high res)

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The Strangest “Training Video” Tech From 1982 Revealed! Laserdisc Training Disc 1982

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