Fri, 9pm, Stargate - Ark of Truth, Sky1
When our trusty heroes find out about an evil Ori plan to wipe out life on Earth, they determine to stop the evil wee fellas. They know there’s a device out there that could defeat them but - wait for it! - it’s hidden within Ori territory. Can the gang find the weapon, stop the Ori and still make it home in time for tea? The tension mounts!

Fri, 9pm, South Park, Paramount
There could be trouble in store (for a change…) for the hapless Butters in the first of tonight’s double bill. Cartman makes him sneak away from a class trip to a living museum in order to visit the amusement park next door. In the second episode, Cartman is at it again, and enlists Butters’ help in stopping the Chinese, whose Olympic drumming is giving our rotund protagonist nightmares. Believing the Chinese have evil plans for America, Cartman forms the American Liberation Front to stop them.

Sat, 8.30pm, King of the Hill, FX
Bobby’s attempt to impress a girl by protesting against the drinks machines at school backfire when the teachers fight against him. When things get out of hand, Bobby turns to his old man for some advice. Will he get the girl in the end?

Sun, 6.30pm, The Simpsons, Sky1
Lisa manages to steal the spotlight from the family’s old friend Krusty and become the star of her very own TV show! One can only imagine the jealousy that must ensue from her underachieving, Krusty super-fan brother… Meanwhile, Homer and Bart throw themselves into their new-found love of coin collecting, of all things.

Sun, 10pm, Desperate Housewives, E4
Bree’s estranged child, who this time around is Danielle (she doesn’t do too well hanging onto those kids of hers, does she?) returns home and is met with the full force of Wisteria Lane’s toughest housewife’s disapproval. Is it any wonder the poor kids keep running off? Meanwhile, Gabrielle and Susan come to blows over the mothering methods, and there’s bad news in store for Lynette.

Sun, 10pm, Breaking Bad, FX
In this penultimate episode, meth-cookin’, cancer-sufferin’ ex-teacher Walter is starting to feel the effects of chemo, but that doesn’t stop him preparing his wares. Jesse’s friend Skinny Pete introduces Walt to a new contact, but things don’t go quite as planned.