Ruff and Reddy, Hanna-Barbera's answer to Crusader Rabbit, had many long adventures that are almost feature-length if put together. Seeing that they were serialized episodes, there's a lot of repetitive recaps at the start of each episode. With this in mind, I've listed every other episode of an Irish adventure the cat and dog were involved with, in honor of the pending St. Patrick's Day:

Part 1: Long Gone Leprechaun:


Part 2: Bungle in Banshee Castle:


Part 3: Too Soon the Goon:


Part 4: Mr. Small Meets Mr. Tall in the Hall


Part 5: A Scary Chase Through a Spooky Place:


Part 6: Gold Room Doom:


And if you want to know just how it all ends, here's the spoiler-free link:
http://www.youtube.com/watch?v=HgDm41lLU_0