Bah, we had the “parental control box” which could have been easily picked with a bobby pin, but the 'rents did such a poor job of hiding the key, and the porn on vhs they got from a friend who had satellite, it didn’t really matter in the least.
When you’re raising four boys, protection means zilch.
Could have been worse: you could have been watching the Dead Things or the Maple Laffs. Back then, those would have strained anyone’s eyes, scrambled or not.
While I am certainly old enough to remember scrambled video, what I don’t remember is ever trying to videotape the scrambled signal. How did this survive?
I did, and the signals were well scrambled, but with the right combination of TV settings and cable box settings, I could get clear sound and messed-up hold on the video.
Oh yeah. The horizontal hold! I haven’t heard that term in years. Now I remember desperately tweaking that little knob that protruded through a hole in the back of the set trying to see if it could override the scrambling. I probably convinced myself that it did.
I remember those days. As a young tinkerer I was able to figure out how to move the dial just right on those old manual cable boxes to get the premium channels to unscramble. After enough time doing this, I think I wore down the detenting mechanism enough to make it really easy to manipulate pretty reliably.
I never really looked into why it worked, but I have a feeling that in these old manual dial analog cable boxes it was more a matter of each channel being tuned a specific way within the box itself (which of course was sealed shut with no visible screws) so the scrambling was actually the channel being enough out of phase so that the picture was mangled. By messing with the dial I could get it in phase enough that the picture would be clear.
Because you’re using it wrong. The first (nearest to the entrance) space is the “front row.” The Uecker gag is that he is getting kicked out to a much worse seat, but is blithely delusional about it.
Don’t know for sure, but it looks like an inverted video signal, with an out-of-band control signal to enable/disable a video switch that would occasionally bypass the inverter. Without the enable/disable switch, it would have been too easy to steal the signal by just inserting an inverting amplifier in the TV baseband.
There was also an over-the-air pay channel in Chicago in the 80’s broadcast on UHF channel 44. They inserted a ~22 kHz sine wave in baseband channel that was just off the vertical sync pulse. I remember a pirate design that used a PLL to recover the jamming signal so you could beat it against the jammed signal and recover the unjammed video. Eventually, they also added a control signal to enable/disable the descrambling boxes because so many people had pirate decoders. I also remember that the local electronics store curiously had a 4’x2’ section of their display wall with just the right parts to build your own pirate descrambler. I guess they got tired of leading people on tours around the store to collect the parts.