Jonathan Wright (I)

All manic energy and improvised lines, the late Ken Dodd was, as this celebration reveals, a funnyman other comedians feared to follow. No wonder. Here, brilliantly, Dodd pokes fun at his own daffy image: "At one time, there was only Noël Coward and me doing this sort of stuff ... "

How to keep a sitcom fresh? Having morphed Not Going Out from farce to family comedy, Lee Mack now attempts the risky undertaking of a live episode, which finds Lee and Lucy organising a Christmas show to raise cash for their children's school. What could possibly go wrong?

It says much for the fuzzy nostalgia surrounding Dad's Army that this is the third of four retrospective docs to mark the sitcom's 50th anniversary. This time, Alexander Armstrong goes behind the scenes and learns how the lovably pompous Arthur Lowe had much in common with Captain Mainwaring.

Series three of the Manchester cop drama concludes with an episode that variously features an outrageously tasteless - and funny - medical emergency played out in a toilet ("Can we cover that up before we zap him?"), one of the team properly in danger and, at the finish, a real emotional kick. This is still quite the best police procedural around thanks to Paul Abbott's writing, and its fine ensemble cast, headed by the fabulous Joanna Scanlan as DI Viv Deering, a study in street-smart cynicism tempered by rough charm.

Return of the series where comedians Joel Dommett and Nish Kumar wring laughs out of visiting places populated by people who are far tougher than them. First up, the Peruvian Andes, where the duo prove to be rubbish porters and are strangely reluctant to impale themselves on cacti.

Even on an island paradise, hell is other people. Such is the neat premise of Marc Wootton's new comedy about castaways who survive a plane crash. There are some good one-liners but, in this opener at least, Wootton's garish sociopath, flight attendant Brett, rather overpowers the show.

Bucket list-inspired telly as celebs most famous for their 20th-century work prepare for a one-off Las Vegas show. In Sin City, cameras follow the likes of Cannon and Ball, Anita Harris and Su Pollard as they share a house, explore the city, rehearse and, natch, share showbiz anecdotes from the good old days.

It's 007 meets The Naked Gun in a silly sitcom about a group of spies, led by co-writer Tom Davis as in-yer-face agent Logan. Subtle it's not - sample line: "Your penis is hanging out" (and it is) - this does have a kind of manic energy that's impossible to deny. First mission: what is the secret of "Abacus"?

A new dramedy from David Cross, starring Stephen Mangan as travel writer Andrew, who divides his time between two families. This opener charts an excruciating dinner engagement, where Andrew worries about being discovered. Your enjoyment may rest on how much you sympathise with Andrew's anguish at his own situation.

In order "to give their wee lungs a bit of a clear out", a group of teenagers from Chernobyl visit Derry. Naturally, forthright Erin, a naif who imagines herself worldly, expects her house guest to be appropriately grateful, only to find sophisticated Katya (Diona Doherty) treats her with disdain. Elsewhere, Granda Joe makes a new friend, a development that goes down badly with his daughters. Lisa McGee's Troubles-set comedy continues to be a rare combination of poignant and laugh-out-loud funny.