Hey Dude/Awesome

In "New Kid on the Block," the gang finds various items missing - Brad's silver picture frame, Melody's lifeguard whistle, Danny's hat, Buddy's shoelaces and other assorted things, which greatly annoys them. At the end of the episode, they receive a package from Ted - all their missing stuff. Turns out he managed to pull off one last prank before his departure... and put his picture in Brad's frame for good measure.