TV Guide Sky Showcase Friday

A teenage boy sparks an investigation and a race against time when he turns up at the SGC claiming to be Colonel O'Neill. Sci-fi drama, starring Richard Dean Anderson

Daniel has a flashback that prompts SG-1 to launch a rescue mission to save Teal'c's son Rya'c and his mentor Bra'tac from Goa'uld enslavement at a Jaffa death camp. Sci-fi drama, guest starring Tony Amendola and Neil Denis, with Richard Dean Anderson, Christopher Judge and Michael Shanks

McGarrett and the team investigate when a fatal hit-and-run involves a driverless car carrying heroin, and what could be a new means for delivering drugs. Plus, Tani and Quinn are stuck with a pair of YouTubers who are brought on a ride-along with Five-0

When the CIA informs McGarrett that his mother has gone rogue on her undercover mission and may have killed her partner, he goes alone to Mexico to bring her home and prove her innocence

The team searches for a group of extremists carrying out co-ordinated attacks against local businesses, while Deacon finds himself at odds with Annie as she wants to enrol their daughter Lila in a private school.

The NCIS team helps naval intelligence officer Akhil Ali locate a colleague who went missing while recruiting foreign assets as potential sources of intelligence. Callen is joined by psychologist Nate Getz as he tries to track down a man he believes was present for his training when he was young

Homer eats a poisonous fish and fears he has only 24 hours to live. As the minutes tick by, he embarks on a frantic race to put his affairs in order and accomplish everything he ever wanted to do but never did. With the guest voices of Larry King and George Takei

Bart pulls out all the stops to pass a school exam, determined to avoid the humiliating prospect of being held back a year - but finds he is not cut out for a life of constant study

Sookie struggles with her emotions when the serial killer strikes close to home. Jason finds the urge for vampire blood hard to bear, eventually lashing out at his sister in his lowest moment. Elsewhere, Sam and Tara find comfort in each other's loneliness. Supernatural drama, starring Anna Paquin, Stephen Moyer and Ryan Kwanten

Carrie unexpectedly comes face to face with her rival for Big's affections, while Charlotte's life is taken over by wedding fever, and Miranda develops an attraction to a man wearing a sandwich costume

Charlotte has second thoughts about Trey the night before the wedding after an attempt at passion falls flat. Samantha enjoys a party of her own with one of the groomsmen, and Carrie contemplates telling Aidan about her affair with Big

The Proactive Squad from Thames Valley Police uses unmarked cars fitted with on-board video cameras to give an insight into vehicle crime and how it can be prevented, featuring footage of dangerous drivers on the overcrowded roads

The team searches for a group of extremists carrying out co-ordinated attacks against local businesses, while Deacon finds himself at odds with Annie as she wants to enrol their daughter Lila in a private school.