In light of that the Encyclopedia Britannica was going out of print (no surprise there), I thought it would be fun to go dig up one of the early commercial - just to show how things changed. It dates to 1985, and this is the iconic one that features the kid running through the rain to get to the closed library.
To be honest, this is more of a "what took them so long" type of story than anything else. The Encyclopedia Britannica has long since been replaced by Wikipedia, which is both free and more convenient. The video that you see above hasn't been true for at lest 5 years now, maybe more.
That commercial pitched 32 volume set that now costs over $400. Anyone who could have bought it has long since gotten a computer and an internet connection, which is a far better value.