May 29, 2018 12:37 pm This Week on Open House Don’t miss an all-new Open House this weekend on NBC. Check local listings for air times in your area. US & World Videos 2:49 Lady Gaga teases her ‘authentic' version of Harley Quinn in ‘Joker' sequel 5:43 Glen Powell and Ally Maki vs. Kelly Clarkson: Movie poster trivia 1:55 Airline ‘Bark Air' lands inaugural dog-friendly flight in LA 3:08 Red Nose Day Supports NYC youth sports nonprofit 0:57 ‘Seinfeld' star Michael Richards reveals prostate cancer diagnosis