TLC | 9:00 pm

Quints Ava, Olivia, Riley, Parker and Hazel Busby are now "three-nagers," with all the attitude that entails, as this hit unscripted series opens a new season. Amid all the family fun, however, parents Adam and Danielle juggle new issues such as her stubborn and mysterious migraines, as well as the prospect of another surgery for daughter Hazel.