The Rob & Michele Reiner murders. Was son Nick battling schizophrenia? New details and new video as we break down what investigators know and are still trying to answer. And, new interviews with Reiner’s closest friends. Then, why James Van Der Beer celebrated his stage 3 cancer diagnosis. Plus, the surgery that will have Savannah Guthrie away from “The Today Show” for weeks. And, Bowen Yang’s abrupt exit from “SNL”. Why Saturday’s show will be his last. Then, a slap happy interview with “Anaconda” stars Jack Black and Paul Rudd. Plus, only ET can take you behind the scenes of the new “Avatar” film out today. And, an all new ET Then & Now with “The Santa Clause” star Eric Lloyd. Then, ET on the set of Nate Bargatze’s first feature film, “The Breadwinner”. Plus, HGTV host David Bromstad revealing the darkest chapter of his life. How rebuilding his home helped him rebuild his himself.