https://melmagazine.com/en-us/story/how-the-hell-did-cable-descramblers-work-anyway-and-can-you-still-use-them

Cable theft, which was once portrayed in a Seinfeld episode (https://www.youtube.com/watch?v=yKlxy1ZFhMA), used to rampant in the 1980s and 1990s. But can an old cable descrambler purchased on eBay still work?

I doubt it,no one uses analogue scrambling anymore so NO I doubt it would...