"Oi felt a darrrkness creepin' overrr me," said Mary Yellan's voice-over as we launched into the second night of the BBC's festival of contraband, squalor and smuggling. Mary, ensconced in the stygian titular dwelling on Bodmin Moor with her subhuman uncle and cowering aunt, had been having another of her nightmares about drowning, flailing helplessly as towering green waves crashed over her. "Whateverr innocence oi 'ad left would soon be lorst," Mary lamented.

The BBC is going to reap a rich harvest from The Crimson Field. Sarah Phelps’s drama impresses for a whole number of reasons that will score with viewers: there's the closed community and class elements we know so well from the likes of Downton, as well as rather more room for fermentation of youthful hormones, male and female alike, among a shapely cast.

In a hectic writing career spanning theatre, radio, film and TV, Sarah Phelps can lay claim to such milestone moments of popular culture as both the return of Den Watts to EastEnders and his subsequent demise in 2005, and writing the screenplay for BBC One's adaptation of Dickens's Great Expectations at Christmas 2011, which starred Ray Winstone and Gillian Anderson.

If anybody is daft enough to argue that the television licence fee isn't worth it, then just usher them before this superb mockumentary, brought to you by the team behind Twenty Twelve.

Crime drama at its best not only offers a satisfying mystery and characters with whom we want to spend time, but a strong sense of place, a location that captures our imagination and makes us want to know more. Little wonder then that the BBC snapped up the rights to Ann Cleeves’s Shetland Quartet of novels featuring Detective Inspector Jimmy Perez, the Scottish cop with the Spanish ancestor. With its authentic Shetland locations, Raven Black (the first of three two-part stories) was beautiful to look at.

It may seem strange that something we do every day of our lives – talking – is an incredibly difficult thing to put in a televisual setting, and the list of those who have tried to do a chat show and failed to make an impact is long. Davina McCall, Gaby Roslin, Ruth Jones, to name just a few - despite having real talent in broadcasting and comedy – have crashed and burned when given a sofa and a bunch of people they've never met before to have a natter with.

In its infancy back in 1997, Jonathan Creek felt fresh and inventive, with clever little swipes at the entertainment industry and a new take on crime drama: not who or why, but more of a howdunnit. Its star Alan Davies, he of the duffel coat and the tumbling hair, was rather good at narrowing his eyes and staring into space while we let our hot chocolate go cold waiting to discover not only who carried out one of those incredibly theatrical murders, but to see its baffling mechanism unpicked.

In between the second series of Silk and this new one, Peter Moffat took time out to write his rural-misery-and-cannon-fodder dirge, The Village. Having off-roaded so far from his usual track, perhaps it's no wonder that his return to the world of wigs, hypocrisy and legal sophistry felt a fraction off the pace.

As the Brockman family returns for a fifth and final series of Outnumbered, some viewers will find their hackles standing to attention at the family's extraordinary distillation of middle-class characterstics. There’s the enviable middle-class London home they live in, absurdly beyond the means of a family that seems to subsist on a single teacher’s income. There’s the tameness of their problems, this week's revolving around angst-ridden secondary school choice and the horror provoked by the eldest child Jake's (Tyger Drew-Honey) tattoo.

If it ain't broke don't fix it, and writer Heidi Thomas obviously has no intention of tinkering with the Call the Midwife formula. Virtually nothing has changed, except that there's a new character, Sister Winifred, while Chummy (Miranda Hart) is now living with her husband PC Noakes (Ben Caplan) and has a baby son. However, you can't keep a born midwife down, and Chummy's return to the Nonnatus House mothership by the end of the episode was a foregone conclusion.