I think it was parodied in Salute Your Shorts on nickelodeon. (they did it in the episode 'Budnick and Micheal fake being sick' and got Spanish TV)
Back in the late 1980s cable was through a set-top box like
DTV converters are now, for your TV to support cable (back when TVs were not as they called it 'cable ready' meaning their tuners didn't support the signal and it would be 'scrambled') you rented a cable converter for a very similar reason you get a digital to analog box to view digital television.
The cable converter was also called a 'descrambler' for what it did, took the scrambled signal that would otherwise display on the TV and convert it to a format viewable by the TV and the person watching it.
'Pay Cable' was the term that was later replaced with Pay Per View or Premium content. any of the playboy/adult stuff, or movie channels, or sporting events were on pay cable and required a fee to use it. otherwise it'd just be scrambled (passed through the box itself in a manner similar to analog pass through). this made the V-Chip not even a required or thought of component as all other cable was family friendly then.
But if one was skilled enough to find a pay cable channel that kinda worked and kinda didn't (could sorta make out the picture) enough amps, foil, and spaceman suits tied to cable cords could 'hack' it where it would display in kinda reverse black and white video but still be watched and heard. this was before cable and satellite got sophisticated and didn't require a smart card or encryption yet. i was able to view some old Disney Channel Movies (back when the Disney Channel was a pay cable movie network only) and a good 5 minutes of Playboy before the channel became too scrambled to view even with the foil suit. i was only a child then so i got this impression of the playboy logo bunny being some neat-o cartoon channel, but found out the hard way. i was kinda glad it was only 5 minutes, i don't think mom appreciated me asking questions of what was going on.