M. Night Shyamalan and Marti Noxon are co-writing and serving as executive producers on a TV pilot called \"Proof,\" America\'s Syfy cable network announced. Shyamalan\'s film credits include the supernatural movies \"The Sixth Sense,\" \"Signs,\" \"Unbreakable,\" \"The Village\" and \"Lady in the Water.\" Noxon was a writer-producer on the cult favorite television show \"Buffy the Vampire Slayer.\" Details about their collaboration on \"Proof\" were disclosed Friday by Mark Stern, Syfy\'s president of original content and co-head of original content for Universal Cable Productions. \"In \'Proof,\' after the tragic accident and sudden death of his parents, the son of a billionaire tech genius offers a large reward for anyone who can find proof of life after death,\" a synopsis said. No casting for the possible series has been announced.