S5·E1 – Current Season (as of 2013-03-13) is Season 4
• 60 min
TLC sometimes has split seasons, so numbering can get messed up. According to TVRage, Amazon, Wikipedia, and the TV Guide the current season is 4.
• 60 min
TLC sometimes has split seasons, so numbering can get messed up. According to TVRage, Amazon, Wikipedia, and the TV Guide the current season is 4.