Brother from Another Series

This is undoubtedly another favourite The Simpsons episode based around Bart Simpson's archenemy: Sideshow Bob.

The plot of the episode is Bob becoming a model prisoner and is recommended for an earl release, despite objections from public, even a terrified Bart. Bob meets with his brother Cecil which the two rekindle their history even involved Cecil being upstaged by Bob at Krusty's auditions.

It's no surprise Cecil is voiced by David Hyde Pierce who played Kelsey Grammer character's brother Niles Crane in Frasier.

Bart eventually saves Bob after they plummet down the side of the dam, and protruding pipe breaks their fall, bet Bob feels it painfully helpful on impact, LOL!