Yeah! Warner Brothers. Of course, the ones I
have listed here are mostly early shows and just collections of theatrical
shorts. But this is what I found! Enjoy or else.
Beetlejuice
The Bugs Bunny and Tweety Show
The Bugs Bunny/Looney Tunes Comedy Hour
The Bugs Bunny/Road Runner Hour
The Bugs Bunny Show
The Daffy Duck Show
Looney Tunes
The Porky Pig Show
The Road Runner Show
The only non-7 minute strings show here is Beetlejuice, and it was produced in association with other companies. But Warner Bros. has some nice animation here. I will update this as I find more. All the series and characters listed here are licensed trademarks of Warner Brothers.
I will try to have descriptions of some of these series up soon.
Oh, NO! It's BEETLEJUICE! Quick, back to the main Cartoon Channel!