Mister Eleven, ITV1

Drama by numbers gets its sums badly wrong

You can just picture the meeting. Someone stands up and pitches. “We’ve got this girl, see. And she’s good at numbers, OK? You know, maths and stuff. But here’s the thing: she knows that statistically her best chance of a successful marriage is if she gets hitched to her 11th sexual partner when she’s 28. With me so far, guys? Trouble is, she discovers on her wedding day that Mister Eleven is really Mister Ten. Yeah? And then all hell breaks loose. What you reckon? Eh? Think it’s a goer?” Silence reigns in the room until the head honcho - you somehow assume it is a man - slowly raises his honcho head and delivers his solemn verdict. “I love it!!”

Collision, ITV1/The Execution of Gary Glitter, Channel 4

Carnage on the A12, and a long drop for Gary Glitter

The premise of Collision (as well as its title) is unmistakably similar to that of Paul Haggis's movie Crash, in which a road accident provides the linking point for a cluster of disparate personal stories. However, instead of the boulevards of Los Angeles, Collision exploits the less often remarked upon mystique of the A12, which links east London to Great Yarmouth. In 2007, the A12 was adjudged "Britain's worst road" in a survey by Cornhill lnsurance, so Collision's creator and writer Anthony Horowitz has picked an appropriate location for his fateful multi-vehicle pile-up.

Murderland, ITV1

Coltrane back to case-cracking

You can only assume they decided to confront the, er, generously proportioned mammal in the room. ITV launches a new police procedural starring the star of an old police procedural. Said star is a sizeable Scot with an old Toby jug of a face and, oh sod it, let’s just admit we’ve cast him because of the baggage. Yes, Cracker is back. OK, not Cracker, nor even Fitz, but a lived-in Glaswegian high-rise of a man who cracks murder cases on primetime, pausing only for the commercial breaks. It’s almost as if the young witness already knows all about Robbie Coltrane. “I’ve seen you before,” she says in the incident room. “Yeah?” he drawls. “I’ve been in the papers a few times.”

Trinity, ITV2

Homegrown teen-dramedy-thriller-whatever

Secondary school teachers accused of not pointing their brighter students towards Oxbridge might feel vindicated by ITV2’s Trinity - although the messages were a little mixed. On the one hand the fictional elitist university college in this new teen dramedy-thriller is dominated by sadistic, floppy-fringed toffs and their debauched secret societies. On the other hand some state-educated freshers might quite like the idea of being asked by lithe, blue-blooded blondes, “Have you ever come on a member of the royal family?”

Julia McKenzie's Marple

Stepping into Miss Marple's shoes

Miss Marple is frequently described as “a little old lady”, but for all that she casts a giant shadow. Just ask any new actress invited to portray this most beloved of characters. When you play the spinster sleuth, you have massive shoes to fill. That has certainly been Julia McKenzie’s experience.