Yes, "Barber Lou" (Bobby Barber does appear in the episode as "Hercules") is not one of the better episodes, it's sort of a weird patchwork of an episode, not only with the first season lifted traffic cop bit, but also the rubdown sequence and the old chestnut "stage direction" routine, except this time Lou sings "Jeannie With The Light Brown Hair". The only bright spot of the episode is the feud they have with Mrs. Bronson (Renie Riano) who refers to Lou as a "fat, little monster" then Lou scares everybody (including himself!) out of the frame with a very large rubber iguana! That and the stage direction bit more characteristic of the first season than the second one!

Another 2nd season episode I was never a fan of was "Private Eye" the whole thing seems like a tired, half-hearted re-tread of their earlier "haunted house" episodes. There were two amusing parts of that episode, the weird portrait of Bobby Barber
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that creeps out Bud then scares Lou and when Lou puts on 3D glasses to look at a painting that was really coming out of the wall! The King with the scepter in the painting played by long time Hollywood stuntman Paul Stader. Lou puts the glasses on his head and says:

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"Ain't dat three- D beaut-ee-ful?"

Harry the Cop appeared to be added because the story called for a friendly (i.e. unfunny) cop to Bud and Lou and not one as an adversary as Mike the Cop always was. To have Mike suddenly want to be friendly and help the boys would have been strange and uncharacteristic.