Mayweather vs Pacquiao (9 p.m., HBO/Showtime) – The much-hyped welterweight championship fight between Floyd “Money” Mayweather and Manny “Pacman” Pacquiao takes place at the MGM Grand Garden Arena in Las Vegas. You can watch via HBO or Showtime Pay-Per-View, but it’ll cost you $90. HBO and Showtime will air “Countdown” specials at 8 and ESPN’s SportsCenter will cover the Red Carpet at 8.
Also on tonight . . .
Cleveland Abduction (8 p.m., Lifetime) – This Lifetime movie dramatizes the real life events surrounding a single mother kidnapped by Ariel Castro and kept in his home with two other women for 11 years. Stars Taryn Manning, Raymond Cruz, Pam Grier and Joe Morton. A “Beyond the Headlines” special about the kidnapping airs at 10 and features an interview with one of the survivors, Michelle Knight.
My Cat From Hell (8 p.m., Animal Planet) – Jackson Galaxy helps a hostile 21-pound cat named Elvis who harasses his family.
Orphan Black (9 p.m., BBC America) – Leda and Castor hunt for the original clone DNA, while Mark and Gracie pursue new leads.
Outlander (9 p.m., Starz) – Jamie is placed in a tough situation when a redcoat deserter from his past returns.
Saturday Night Live (11:30 p.m., NBC) – Scarlett Johansson hosts and Wiz Khalifa performs.