'90 Day: The Single Life’ Trailer Sees Return of Fan-Favorites Debbie, Tim and More! (Exclusive)

In ET's exclusive preview of TLC's '90 Day: The Single Life,' '90 Day: The Single Life,' fan-favorites Chantel, Debbie, Tim and more return! This time around, the series will feature two returning singles and five new singles on their quests for love as they navigate the world of online dating, first dates, first loves and heartbreak. '90 Day: The Single Life' premieres on Monday, Jan. 1, at 8 p.m. ET/PT on TLC.