Michael Hogan

As London's big moment looms ever closer, the Bafta-nominated Olympic-themed sitcom returns for a final run of three episodes. This curtain-raiser, entitled Catastrophisation, opens with 32 days to go until the Games. Newly divorced Head of Deliverance Ian Fletcher (the excellent Hugh Bonneville) chairs his usual succession of interminable meetings, rammed with well-observed management-speak: "going forward", "win-win", "no-brainer" and other such babble. Lord Coe's on the phone, flapping about transport. Boris is worried about bikes. Everyone's obsessed with "sustainable post-Games legacy". Translation: desperately trying to flog the stadium to anyone who fancies it. Meanwhile, a delegation of American officials arrives to check security arrangements. As usual, Jessica Hynes as clueless branding consultant Siobhan Sharpe and Karl Theobald as incompetent infrastructure guru Graham Hitchins steal most of the laughs. Twenty Twelve's subtly satirical style is much gentler than The Thick of It or Veep but it does share one quality with those shows: as you're chuckling, there's also a creeping sense that somewhere this is all actually happening.

Think, perhaps, of a rap version of The Monkees meets Flight of the Conchords and you might get an idea of this promising new sitcom featuring unsigned comedy band The Midnight Beast. Stefan Abingdon, Dru Wakely and Ashley Horne made their name with a YouTube cover of Ke$ha's Tik Tok and now have their own show which blends music videos and a storyline of them struggling to make ends meet while living in a high-rise squat in east London. Tonight, they try to scam free pizzas and are kicked out of a club for stealing drinks.

There's been plenty of reverential regal programming celebrating the Queen's Diamond Jubilee. Now it's time for a more sardonic spin on the landmark event, with this special edition of the popular comedy panel show. Wisecracking Jimmy Carr hosts as two celebrity teams, captained by comedians Sean Lock and Jon Richardson, give their satirical take on the royal weekend, while dissecting monarchy-related opinion polls, surveys and statistics.

Aged just 25, Clydebank comedian Bridges has already been honing his craft for eight years and become one of our fastest-rising stand-up stars. This hometown gig before 10,000 fans at a sold-out SECC arena shows why, covering everything from Lady Gaga and clothes shopping to his relationship with his father. His routine on the differences between Brits and Americans is particularly rafter-raising.

It was a slight surprise whenthis transatlantic sitcom was recommissioned for a second series. It had a clever enough concept. British screenwriters Sean and Beverly Lincoln (Stephen Mangan and Tamsin Greig) were excited to see their successful television show snapped up to be remade for an American audience. However, their Hollywood dream turned sour when their subtle comedy about a boarding school headmaster, Lyman's Boys, was turned into a brash sitcom about an ice hockey coach called Pucks!, a vehicle for former Friends star Matt LeBlanc (playing an exaggerated version of himself).

It was smartly written and beautifully played but not the broadest of subjects, perhaps too knowingly in-jokey, and duly saw its audience fall to just over one million. Still, critical acclaim and the calibre of its stars has seen Episodes return for another run. It's four months later and Bev's still separated from Sean after her fling with Matt. The two men's friendship also seems unsalvageable. However, when Pucks! gets its premiere on US TV, the tense trio must find a way of working together. With genuine laughs, bittersweet moments and two rather rude scenes, Episodes might now be hitting its stride.

This week's guests on the garrulous host's banquette of banter include Twilight starlet Kristen Stewart, who'll be talking about upcoming fairy-tale flick Snow White and the Huntsman, US funnyman Chris Rock and crooner Engelbert Humperdinck - who will also perform Love Will Set You Free, the UK's surprisingly decent entry for the Eurovision Song Contest in a fortnight's time. Well, he can't do much worse than our recent efforts.

This knowing, beautifully nuanced sitcom reaches the halfway mark in its second series. Wannabe actor Simon (star and creator Simon Amstell) lands the role of Ariel in a new production of The Tempest, so he tries to learn how to cry on command. Elsewhere in his ever-chaotic family, Grandma (Linda Bassett) struggles to come to terms with Grandpa's death, and mother Tanya (The Thick Of It's excellent Rebecca Front) prepares a surprise for her own birthday, while her hapless fiancé Clive (James Smith) comes round in the loft after a heavy drinking session.

The many sides of Rebecca Front

The comic actress Rebecca Front is one of our most underrated stars, as this selection of her best television roles shows.

Leigh Francis's comedy character Keith Lemon - a failed businessman from Yorkshire who fancies himself as a ladies' man - has been popping up our screens for four years now. His panel show Celebrity Juice has gathered a loyal audience on ITV2, and last year recorded the highest ratings of any digital show. Now he's landed his debut prime-time terrestrial vehicle, fronting this anarchic twist on the Jim'll Fix It wish fulfilment format. Lemon meets members of the public with desires, dilemmas and niggles. In mischievous style, he attempts to solve their problems or make their dreams come true. Each week he'll be joined by a celebrity helper, starting tonight with Cilla Black - well-versed in these shiny-floored shows herself, as former presenter of Blind Date and Surprise Surprise! There's also music from Brighton hip-hop duo Rizzle Kicks and a chance for the audience to win prizes in daft game "Lemon Drops". Shamelessly cheesy family fodder, it won't be to everyone's taste, but this is harmless, big-hearted fun, and part of ITV's search for new Saturday night fixtures since the long-running TV Burp ended a fortnight ago.

Comedian Jack Whitehall, 23, has always been somewhat prodigious, first arriving on our screens aged just 20. He won further acclaim last year with his scene-stealing turn in student sitcom Fresh Meat. Now he gets this solo vehicle, which finds him travelling to UK cities to learn about their culture before performing at a local venue. First up is Newcastle, so he meets football hero Alan Shearer, welcomes musical duo Rizzle Kicks and, most amusingly, stays with a Geordie family and heads "out on the toon" with the son.