Yay, Graham's back and once again there is a reason to stay in on Friday nights. He's terrific, and has injected bright new life into the post-news chat-show slot vacated by you-know-who last year. I love the dynamic of the Norton sofa, where guests turn up en masse rather than separately, which leads to some funny and occasionally weird interaction, or lack of interaction (remember a worried-looking Maggie Gyllenhaal staring in bafflement at comedian Russell Howard?). So far in Norton's reign, my favourite odd couples are big, smiley Hollywood hunk Bradley Cooper, who took a shine to our own Jo Brand, and one of tonight's guests, Catherine Tate, who was "romanced" by rapper 50 Cent the last time she appeared. Tate, last seen as Howard Donald in Comic Relief's Fake That, joins her old mucker and former Doctor Who, David Tennant. Grammy Award nominee Josh Groban provides the music.

While we've always not minded Graham Norton, even during his mid-career slump - remember when he was on C4 every minute of the day? - it's only now that we've come to really admire him as a good broadcaster. Perhaps there's something about that 10am R2 slot that makes TV chat show hosts relax and reveal their true selves. It certainly did it for Jonathan Ross all those years ago. Or maybe its just winning on Just A Minute, but now Norton is more mature, more likeable and just downright good.

Tonight, he has David Tennant and his mate, the hilarious comedian Catherine Tate and music from Glee star Josh Groban. Even though this doesn't sound like a whole lot of material to work with - or indeed any good at all - somehow it will end up being very entertaining.

With a new series of Doctor Who fast approaching, the Telegraph's Graham Norton begins his new run with a vintage Who feel. David Tennant and Catherine Tate, both of whom starred together in a previous Who series, join Norton on the sofa to discuss teaming up again in a new West End production of Shakespeare's As You Like It. Lancaster-born comedian Jon Richardson talks about his tour, and the singer/songwriter Josh Groban promotes his Straight to You tour, before singing songs from his new album, Illuminations.

Catherine Tate to replace Steve Carell on US Office?

Catherine Tate is to appear on the last episode of NBC's The Office as a candidate for the Office Manager postition, due to be vacated by Steve Carell. That means she could be taking over his role.

Comedy, music and good causes - it can only be the show that makes you laugh until you give.

Harry Hill, Steve Coogan, Jennifer Saunders, Joanna Lumley, Ant and Dec and Armstrong and Miller are all doing something funny for money this year, along with the casts of The Inbetweeners, Outnumbered and Miranda.

We can also look forward to a specially shot mini-episode of Doctor Who, and James Corden will be back with the third instalment of his iconic Smithy trilogy - calling in favours from some very big names in showbiz.

Corden will also be one fifth of Fake That - a tribute band which boasts the talents of David Walliams, Alan Carr, Catherine Tate and John Bishop.

Never fear, though, the real Take That will be performing too. In fact, the night's going to be awash with boy-bands, as JLS are in the studio and it's The Wanted's turn to do the official Comic Relief single, Gold Forever.

The music line-up also includes chart-busting Adele, Annie Lennox, Elbow and Gareth Malone, who will be trying to turn some TV chefs into a Comic Relief choir.

Your hosts through this comedy marathon will be Davina McCall, Jonathan Ross, Michael McIntyre, Graham Norton, Claudia Winkleman and Fearne Cotton.

There have been 12 Red Nose Days since 1988, helping to raise more than £500million to help needy people in the UK and abroad.

There'll also be films from David Tennant, Jack Dee, Ruth Jones and Comic Relief stalwart Lenny Henry, each providing frequent reminders of how your money can help change people's lives for the better.

Mrs Brown's Boys - BBC1, 10.35pm

Remember the 80s sitcom Bread, with Ma Boswell, Joey and grandad? Imagine the very best episode of that with Catherine Tate's Nan in the central role and you have the rough flavour of this brilliant comedy from Dublin comic Brendan O'Carroll.

Catherine Tate seeks directing action

Catherine Tate has hinted she could leave her much-imitated characters behind and move into directing.

In the style of Mock The Week, with guests straight off Have I Got News For You and a format borrowed from that other topical debut of the week, 10 O'Clock Live, this new panel show has launched itself in an already overcrowded genre.

And with in-depth discussion of Jordan's latest failed marriage and in-depth handling of some stress-ball breasts, That Sunday Night Show clearly had its brows aimed significantly lower than any of the aforementioned shows.

In this episode, Kevin Bridges, Catherine Tate and John Prescott joined host Adrian Chiles to discuss everything from Ricky Gervais' performance at the Golden Globes to the suspension of the Education Maintenance Allowance for young people, as the emollient Max Clifford and Piers Morgan were wheeled on to comment.

But if the range of topics covered was impressive, the profundity with which they were discussed was something else, as the time constraints of the show allowed only for a cursory glance to be cast over each of the subjects.

So, with the comedy already covered on 10 O'Clock Live, interviews carried out competently on Piers Morgan's latest venture and the serious stuff sorted by Have I Got News For You, can there really be any place for this slapdash and skin-deep attempt from ITV? Unless it changes its tack, this show will find itself superfluous to requirements pretty quickly.

Daybreak may still be finding its feet, but this post-watershed magazine show seems a better fit for Adrian Chiles's wry sense of humour. Tonight he takes another sideways look at the most interesting stories of the week with two guests likely to deliver piquant views: comedian Catherine Tate and former Deputy Prime Minister John Prescott.

If you've decided to spend New Year's Eve on the sofa, this feast of funny will see you through a hefty chunk of the evening. Earlier this year, two dozen of the nation's finest comics performed at London's O2 Arena to raise money for Great Ormond Street Hospital. They included Bill Bailey, Alan Carr (both backed by Stomp), Ricky Gervais and Catherine Tate. Not that it'll affect your viewing experience at home but, in case you're interested, this comedy extravaganza (first broadcast in April) was the self-proclaimed biggest stand-up show in UK history.