Echo of the Elephants: The Final Chapter? 6.05pm, ABC1 Surely everyone knows elephants are beautiful, social creatures that live on average more than 50 years, and which, alone in the animal kingdom, appear to grieve for their dead. No? Well, if that’s the case, this enchanting documentary, the third in a series, should prove educational as well as thoroughly entertaining. Introduced by David Attenborough, who lends his gravitas and authority, the program is narrated by Cynthia Moss, who has made the study of elephants her life’s work. Moss has been following an elephant matriarch named Echo, pictured, and her family for 30 years. Now, as Echo draws near the end of her life, succession looks set to pass to her daughter, Ella, aged 37. Wildlife documentaries don’t get much better than this. The Ghost Whisperer, 8.30pm, Seven Those expecting poor old Ugly Betty in this timeslot will be disappointed. Once Seven’s star Sunday night attraction, Betty and her cavalcade of high- octane fash mag slags were forced to set up house in the relative ignominy of late- ish Thursday night. But now they’re gone, baby, gone. Instead it’s more two- hour shots of the entirely anodyne Jennifer Love Hewitt in this ridiculous ratings doorstop of a program in which she sees dead people, hour after hour, week upon week. Taboo: Gender Bender, 9.30pm, National Geographic Nobody has put it better than Lou Reed: ‘‘ Hey, babe — take a walk on the wild side.’’ ’ Nuff said.