How could people access pornography in the 80s?

OH MY GRAND COUSIN WAS BORN IN 1981 SO LET ME EDUCATE U. SO BASICALLY WHAT THEY HAD WAS A NACKER SLACKER IN A TALLYWHACK GIVE A DOG A BONE THIS OLD MAN WENT ROLLING HOME RADIO BOOBIES R US AND BASICALLY THE STINKY OREGANO MAN CAME TO OUR DOOR AND GAVE US SOME SHIT FLICKS WITH DICKS AND SOME STICK PISS WITH CHEESY WHIZ