It’s the day after Thanksgiving, and all through the house, the networks already are beginning to roll out Christmas specials like a landslide of holiday perennials. That’s not so much because TV wants to distract us from Black Friday – if you watch any television with advertising, quite the contrary – but because there’s such a backlog of Christmas specials that unless the networks begin showing them immediately after Thanksgiving, they’ll never have time to televise them all. Tonight, NBC leads off with one of my favorite Christmas specials, which CBS televised originally, back in 1966. Cartoon genius Chuck Jones brings the characters and visuals of Dr. Seuss’ story to life, and Boris Karloff narrates the story – but does not sing “You’re a Mean One, Mr. Grinch.”  That song is sung by an uncredited performer named Thurl Ravenscroft.