TV Guide Sky Showcase Tuesday

Michael encourages his colleagues to invest in Ryan's new business idea, but Pam fears his generosity is being exploited. Dwight sets up a hay-themed play area in the car park, and Jim clashes with Gabe when he discovers Sabre has put a limit on the amount of commission sales staff can earn

Michael becomes afraid after reading a magazine article about China's economic power - but his tenuous grasp on current affairs leads him into a battle of wits with Oscar. Pam loses patience with Dwight's penny-pinching management of the office building, and searches for a new site for the company. Comedy, starring Steve Carell

Bart becomes addicted to junk food and eventually suffers a minor heart attack. Marge and Homer resort to drastic action and send him to a high-security fat camp - which they fund by taking in German lodgers

Lisa enters a singing competition on the Krusty the Clown Show and makes it through to the final stages, but Homer's competitive streak threatens to sabotage her performance. Guest starring American Idol 2004 winner Fantasia Barrino as Lisa's rival Clarissa Wellington

After the shock news that their dad is not actually dead, brothers Lee and Glen are handling things very differently, but unite on a mission to track him down. Return of the comedy, starring Danny Dyer and Ryan Sampson

Karl aims to get to the bottom of his relative lack of a vocation, and visits an 85-year-old Japanese inventor to discover whether he has what it takes to become a genius. When the results prove less than encouraging, he sets his targets a little lower by trying his hand at becoming a traditional Japanese handyman. On the opposite end of the spectrum, he hangs out with a self-made millionaire in South Africa and jets off to Los Angeles to strut his stuff in a Hollywood fashion show

At the London Palladium, Josh performs his stand-up show where he finally tackles the hot comedy topics of advent calendars, weddings and the closing time of his local park