“The Nightmare Before Christmas” (8 p.m., Disney): Hey, it’s October. Back off.

“The Nightmare Before Christmas” (8 p.m., Disney): Hey, it’s October. Back off.

“Parenthood” (10 p.m., NBC): We’re really worried about Zeek (Craig T. Nelson) on “Parenthood.” Tonight’s episode reveals what caused that scary fainting spell during his trip to Las Vegas.

TV listings, B6