If I tell you that The Discovery Channel is airing Megalodon: The Monster Shark Lives (Sunday, 10 p.m.), that can mean only one thing. Yes - Shark Week is back. And it kicks off with this documentary in which some scientists postulate that a huge white shark could be a megalodon, which were thought to be extinct.
Friday on TV ...
America’s Next Top Model (7 p.m., CW/Ch. 30): The two-hour premiere of Season 20 - the first to include both male and female contestants.
Continuum (8 and 10 p.m., Syfy): Alec’s mother is shot by a bullet meant for Julian.
Magic City (10 p.m., Starz): Ike makes a deal to run the Havana hotel, which doesn’t make Victor happy.
Saturday on TV …
MLS (7 p.m., Ch. 4): Real Salt Lake at Colorado Rapids
WrestleMania: The World Television Premiere (8 p.m., NBC/Ch. 5): The journey to a rematch between The Rock and John Cena.
Do No Harm (9 p.m., NBC/ Ch. 5): NBC burns off another episode of this canceled series. Something happens … that nobody cares about.
Celeste and Jesse Forever (9:50 p.m., Starz): Rashida Jones and Andy Samberg star in this film, which debuted last year at Sundance.
Zero Hour (11:05 p.m. & 12:05 a.m., ABC/Ch. 4): ABC burns off the last two episodes of this canceled series … and nobody cares.
Sunday on TV ...
NFL preseason (6 p.m., NBC/Ch. 5): Dallas Cowboys vs. Miami Dolphins in the Hall of Fame Game.
Big Brother (7 p.m., CBS/Ch. 2): Somebody’s getting evicted.
Secret Millionaire (7 p.m., CBS/Ch. 4): Anne Beiler, the founder of Auntie Anne’s Pretzels, travels to Baltimore to find people worthy of donations. (Season premiere)
The Killing (7&8 p.m., 9&10 p.m., AMC): A pair of episodes feature Sarah trying to find peace and a new case. (Season finale)
Drop Dead Diva (7 and 11 p.m., Lifetime): Jane and Grayson represent a beauty pageant contestant who has been stripped of her crown.
Unforgettable (8 p.m., CBS/Ch. 2): Carrie is on the trail of a notorious bank robber.
Copper (8 p.m., BBC America): Corcoran runs out of leads in the case.
Devious Maids (8, 9 and 10 p.m., Lifetime): Marisol makes a discovery at the Powell house.
Falling Skies (8 and 9 p.m,. TBS): In the season finale, the 2nd Mass attacks an Esphani base - and a new set of aliens arrives.
Megalodon: The Monster Shark Lives (10 p.m., Discovery): Scientists believe a huge white shark could be a megalodon, which were thought to be extinct.
True Blood (10 p.m., HBO): Sookie considers trying to make peace between Bill and Warlow.
Dexter (10 p.m., Showtime): Just when Dexter and Deb seem to be back to normal, Hannah reappears.
Sister Wives (10 p.m., TLC): Construction may not be completed on the homes before Christmas.
The Newroom (11 p.m., HBO): Will humiliates an Occupy Wallstreet spokeswoman on the air.
Ray Donovan (11 p.m., Showtime): Ray creates an incriminating video in an effort to shut down Van Miller’s investigation.