The Black Wig
This third season classic has always been a fave of mine. And in some scenes, Ethel's funnier than Lucy, at least to me.
My only issue is that Lucy is too smart a character to buy that Ricky wouldn't recognize her in the dark wig and Italian blouse and skirt. I think director Asher should've had Lucy donning large sunglasses and speaking in a bad, but thick accent. Since Asher has Lucy keeping her back to Ricky for most of the scene, Lucy simply could've slid the sunglasses down her nose so she could roll her eyes at Ricky's flirtatious comments.
That said, this episode is a winner all the way.