"Little curly hair in a high chair" - priceless.

The music sequence in Series 4 Episode 5 "Sing You Sinners" has to be one of the best things they ever did:

* Jeff's face at Gladys's ghastly shrill rendition of "Little Curly Hair in a high chair" carrying a doll and dressed as a nun.

* Spike in a long wig singing "Garden of Eden" with a nearly-naked Sylvia (fig leaves the size of bay leaves) and Barry mincing in behind them as the serpent.

* Yvonne as "Delilah" looking like a bad Cher impersonation, looking as miserable as sin and clipping a pair of oversize scissors in time to the beat.

Seriously - it has to be seen to be believed. You can find the entire episode online.