It depends on how far back, back then was. I started selling BUD's in 1979 and back then, nothing was scrambled. HBO, Cinemax, Showtime, Select TV and every other channel was ITC. It was several years before the Videocipher came out, and another 2-3 years before most of the non-pay channels spent the money to encrypt their channels. The movie channels went first.
Even after everything went encrypted, the program packages were very reasonable in price. I actually liked the analog days more than digital. Much fewer problems, the weather almost never affected the signals and it wasn't really a big deal moving from one satellite to another. Now, if someone in California farts, something goes off, sometimes for good. It's easier to get a large amount of channels on one transponder with digital, but there's a boat load of things that can cause you to lose a channel, like Hallmark.
I've tried to get it back in for over a month and used 5 different receivers and two work arounds still haven't got it back in. I have a dozen or more channels that used to come in that won't now, and nothing has changed on my end. I even put up a 12 foot dish trying to get them back in, and nothing, yet the other channels on the satellite are booming in. Maybe there's something I'm missing, but I don't know what it could be. I enjoy what we're getting, but it frustrates me when I can't resolve a problem. I'm quirky.