Battle of the Network Stars

ABC | 9:00 pm

A "Beverly Hills, 90210" mini-reunion informs the new episode "Primetime Soaps vs. ABC Teens," as Ian Ziering (minus his "Sharknado" chainsaw) and Gabrielle Carteris are on the "Soaps" team. Among those joining them: "Knots Landing" alum Donna Mills, who also competed on the original specials that inspired this series. Among their rivals, who played teens on ABC shows, are Olivia d’Abo ("The Wonder Years") and Anson Williams ("Happy Days").