David Walliams to return to the stage in My Fair Lady

David Walliams and Sheridan Smith are to pair up on stage again - this time for My Fair Lady.

If the 90 per cent empty auditorium in which I saw this film earlier this week is any guide, TV comic Harry Hill has not struck gold, but something much smellier, with his graduation to the big screen.

Maybe it's Marmite, for people either love or hate his brand of comedy. As with Marmite, if you don't have the taste for it, it's not easily acquired, and it won't be acquired here.

Like Russ Abbot and Freddie Starr, before him, Hill revels in the adjective 'madcap', and there is certainly a strong madcap element to this tale of the ever-genial Harry and his nan (an exceedingly game Julie Walters) taking their apparently terminally-ill hamster (in fact, a cuddly toy) to Blackpool.

On the way they run into Jim Broadbent, playing a three-armed female cleaner in a nuclear power station, and Sheridan Smith, who plays the princess in a nautical tribe of shell people. Meanwhile, they are pursued by two villains dispatched by Harry's evil identical twin Otto (Matt Lucas).

Hill has attracted some top-notch British talent. Whether they read the script first is open to question.

Otto is cross because he was given up for adoption to a group of Alsatians in Kettering, and from that you get a hint of the kind of humour that prevails.

It's surreal, for sure, but the kind of surrealism that makes you sink lower and lower in your seat, wondering whether to make a dash for the exit.

If you do sit it out, though, there's some enjoyment to be had in spotting the comedy references - to The Goodies, The Lavender Hill Mob, even Charlie Chaplin's City Lights.

But I'm afraid that serves mainly to remind us what good comedy is, and what this isn't.

Sheridan Smith dressed in shells on Harry Hill movie

Sheridan Smith was spotted dressed in seashells on the set of Harry Hill's debut movie in Blackpool yesterday.

Sheridan Smith quits Jonathan Creek

Sheridan Smith has quit as Jonathan Creek's sidekick because she is too busy with other projects. Now Sarah Alexander, who was introduced to the show at Easter as Jonathan's wife Polly Creek, is to take over in the role of his assistant.

The comedy crime series Jonathan Creek returns for its first outing since 2010 and it's still as baffling as ever, although there have been a few changes...

The main change is that Creek (Alan Davies) has left the world of magic and his windmill home for an ordinary working life in an office, having married a lady called Polly (Sarah Alexander). While Polly goes away on a business trip, however, his sidekick Joey Ross (Sheridan Smith) tells Jonathan about a murder case involving an old friend's vanishing corpse in a locked room. Creek decides to dust off his duffle coat to take on the case - one that involves an old acquaintance of his: overbearing cop D.I. Gideon Pryke (Rik Mayall).

This episode had its ups and downs. I did feel myself giving a bit of a cheer when I saw Creek going through his wardrobe and pulling out his trademark duffle coat. The supporting cast performed well, although given that included the likes of Mayall, Joanna Lumley and Nigel Planer it's not surprising. What was surprising, however, is that given how energetic Mayall usually is it was interesting and refreshing to see him perform a role which demands almost no movement. There were some funny moments too, such as when Joey believes she has discovered a code, only to find out that Creek has solved it already. The way it's revealed was hilarious.

However, in terms of the case itself, there were some flaws in it. My brother was watching the episode as well, and remarked on one of the clues, which was a pair of footprints right up against a wall. The way the footprints were formed we by a pair of shoes being dropped from a high window and landing perfectly next to each other just in that spot. As my brother pointed out, surely the shoes would not have fallen straight to the ground, but tumbled as they fell.

So in this case, the performances as we good, but the writing could have been better. A new series is in the works so hopefully the show will return to form.

I hope Mr Hall, the BBC's new Director-General, sat down that Monday evening and watched Jonathan Creek and quietly applauded. I can't remember a 90 minutes - actually I can, Doctor Who last week, but this one isn't really for children - I enjoyed so much. Oh, bits are always beseechingly silly. And it comes along so seldom that we're almost bound to enjoy it. But this was still a winning showcase for simple, entertaining, catch-all British drama. So we got a jaunty-spooky theme tune reminiscent of Harry Potter, we got Joanna Lumley, we got both Rik Mayall (still impossibly handsome and delightfully hammy) and Nigel Planer off The Young Ones, a body that had escaped from a locked room, Sheridan Smith playing feisty-naughty modern, as is her winning wont, another body felled by a gargoyle pushed off a mansion (that was Midsomer or possibly Wycliffe), some good gags about academics and, of course, Alan Davies.

His Jonathan is married off now (to the very sexy Sarah Alexander) and has, and you can't quite blame him, thus reluctantly had to put on a suit and get a good job in her daddy's advertising agency. For a few minutes he actually looks rather cool and rather suited in fact to both the Don Draper comportment and life. But soon, excuses combine to let him dig out the old duffel and go off to solve impossibly complex cases with the singular hangdog exuberance that holds the whole extraordinary thing together. Some serious bits, too, not least when Ms Lumley, playing a lifelong atheist, suddenly realises, and with a certain horror, that everything she has ever believed might not be true. This occasional series might not change the world, but it should change the way we remember just how solidly good simple entertainment on the BBC can be when it has the guts to go with its own happy formula.

With David Renwick's planned ITV sitcom frustratingly canned due to a creative dispute with channel bosses, Creek is the only outlet for one of the masters of TV comedy writing. The long-awaited Easter special saw Alan Davies and Sheridan Smith return, supported by Joanna Lumley, Rik Mayall and Nigel Planner, for a typically tricksy locked-room mystery.

As I dozed during Jonathan Creek (BBC1), there was a moment of clarity. Such moments are created by a kindly god so you can finish crosswords or work out whodunnits. It became obvious who decapitated Nigel Planer and stuck the head on a scarecrow's body. It was Rik Mayall. The motive? Payback for those dismal veggie stews Planer's hippy Neil served Mayall's punky Rick in The Young Ones.

When I awoke, it became clear this hypothesis was wrong. The murderer could have been anybody but Mayall. Planer's smug polymath could have been rubbed out by his wife Joanna Lumley. Or terminated by her bit on the side so he could continue to marvel at Lumley's plummy articulation during pillow talk. Or by the usual suspects - sinister villagers, mad nuns, God. But not Mayall. He was the cop investigating the murder, after all. Hold on, though. Wouldn't that be perfect cover?

In any case, there were bigger mysteries. All those household names, all David Renwick's writing talent. For what? The disinterring of a three-years-cold corpse of a TV series whose historic function is to incite couples wending their way up the little hill to Bedfordshire to have exchanges such as the following. "Was it the crazed nun who reached through the portrait of Saint Barnabas to strangle Sheridan Smith?" "You idiot, it wasn't the nun. That was half a century earlier."

Renwick had a lot of fun with his script, though. There really was a character called Jacqueline Hyde, who didn't appreciate why Creek found her name funny. Planer's reading included a book called Cerebral Entropy in the Era of Fox News, though not its companion volume, Brain Shrinkage in the Era of Paranormal Hokum.