Can you help me remember the title of this TV program?

I’m having trouble remembering the title of this show that used to air on Cartoon Network, and was wondering if my fellow Jellies could lend me a hand?

Every episode was a collection of different classic cartoons, things like the Looney Tunes and other cartoons of that ilk. Every Sunday night, they would air a new bundle of cartoons, all of which were wrapped around a central theme or idea that was important to the cartoons. In between shorts, footage of other cartoons of the time were shown, while a narrator would explore the theme a bit more, and how it came to be featured in cartoons of the day. I remember it airing throughout much of my childhood, so that would place it somewhere in the late 90’s to the early 2000’s. If anyone knows what I’m talking about, and can tell me the name of the show, I will provide you love and a free hot meal. Thanks again! :D

I dunno if this helps, but I do recall the opening of every episode being a stop-motion trip into a barn, or barn-like structure, some hay being torn over, and a box being opened revealing a “secret stash” of cartoons..