I need help identifying a song in a Simpsons episode and identifying an episode name. I consider myself an expert when it comes to the Simpsons as I watch it 3-4 times a day. But these two questions are nagging as I can't figure them out:

(1) In the episode "Marge on the Lam", before Ruth and Marge leave for a night on the town Ruth puts in a tape. It's a bouncy tune about sunshine, lollipops, and rainbows. What is the name of this tune and by what artist? I need to find a tape of the full song for a practical joke I've got planned for a co-worker.

(2) In an early episode, Mr. Burns and Mr. Smithers travel down to the depths of the plant. They pass through several high-security areas to eventually wind up at a computer console. After all of the high-tech security features, Mr. Burns finds a broken screen door flapping in the wind with a mangy mutt. What was this episode?? I cannot find it in the episode guides and this episode doesn't appear to be in syndication.

TIA

Mark