LANCASTER, PAMuch to his family's indifference, 44-year-old father of two Bradley Kochner said he enjoyed an interesting show about Bigfoot on the Discovery Channel last night. 'They had some neat footage that was shot in Oregon,' said Kochner at the dinner table, describing the one-hour Legends Of Sasquatch special, in a desperate attempt to reach bored sons Joel, 13, and Kyle, 11. 'If they show it again, I'll tape it. Maybe we can watch it together. Right, guys?' Kochner's wife Laura said her husband has similarly tried to engage his children in discussions about submarines, UFOs, and Pompeii. 