Sleuth 101 is an Australian comedy television series, broadcast on ABC 1 in 2010. The series revolves around a murder-mystery that must be solved by a celebrity guest detective. Each episode features a guest detective, four suspects, a crime scene, evidence and witness accounts – just like real detective work. The show is hosted by comedian Cal Wilson, who occasionally gives subtle hints towards the crime. Each week, the guest detective must solve the murder using his or her evidence. There are some similarities to the 1970s British series Whodunnit! and the 1990s Australian television game show Cluedo. A second series is currently being negotiated by the ABC.