Need to KnowNeed to KnowSeason 12010 · 46 episodesEpisodes1Pilot2Season 1, Episode 23Season 1, Episode 34Season 1, Episode 45Season 1, Episode 56Season 1, Episode 67Season 1, Episode 78Season 1, Episode 89Season 1, Episode 911Season 1, Episode 1112Season 1, Episode 1213Season 1, Episode 1314Season 1, Episode 1415Season 1, Episode 1516Season 1, Episode 1617Season 1, Episode 1718Season 1, Episode 1819Season 1, Episode 1920Season 1, Episode 2021Season 1, Episode 2122Season 1, Episode 2223Season 1, Episode 2324Season 1, Episode 2425Season 1, Episode 2526Season 1, Episode 2627Season 1, Episode 2728Season 1, Episode 2830Season 1, Episode 2931Season 1, Episode 3132Season 1, Episode 3233Season 1, Episode 3334Season 1, Episode 3435Season 1, Episode 3536Season 1, Episode 3637Season 1, Episode 3738Season 1, Episode 3839Season 1, Episode 3940Season 1, Episode 4041Season 1, Episode 4142Season 1, Episode 4243Season 1, Episode 4344Season 1, Episode 4445Season 1, Episode 4546Season 1, Episode 4647Season 1, Episode 4748Season 1, Episode 48Season 2010Season 2011Season 2012