U and Dave ja vu

James May goes in search of a wedding ring lost in the 1970s, the team launches its very own pirate radio station, and there are a couple of amazing inventions on offer.

A shipment of cocaine is discovered in the fifth wheel of a tractor-trailer, and officers searching a courier van find a cache of firearms.

Officers in Eagle Pass seize over 15 kilograms of heroin and unveil a new cartel drug-smuggling tactic, and a Mexican family in Laredo makes a plea for humanitarian parole.

Guy Martin visits the most important place in the entire national grid, the central control room, where electricity is bought, sold and routed every single second of the day.

As Rick's engaging guide to Mediterranean food reaches Morocco, he enjoys couscous, tucks into tagines and mint tea, and cooks the Moroccan dish of kefta mkaouara.

Mathewsons agree to sell a vintage threshing machine and collection of tractors, but extracting them from a Yorkshire farm proves a bigger job than anticipated.

A Cold War Soviet classic goes under the hammer. Built like a tank, the Moskvitch gets few admirers for style, but finds a home with a fan of Eastern Bloc classics.

The actor's competitive fishing travelogue reaches Alaska as he takes on veteran anglers at Resurrection Bay, Annette Island and the Kenai Peninsula.

Clarkson sets out to compare the current Mercedes SL with the same model from 1972, doing the same with the Audi TT V6 and Ford's classic Capri V6. Johnny Vegas is the guest star.

The motoring magazine that packs a punch. Clarkson tests the Chrysler Crossfire and Honda's Type R Civic and NSX. Meanwhile, the Hamster puts a new Smart Car through its paces.

Uplifting stuff as the bikers explore how certain recipes can put a spring back in your step, whether it's a bowl of chicken noodle soup or a fish dish.

As Rick's engaging guide to Mediterranean food reaches Morocco, he enjoys couscous, tucks into tagines and mint tea, and cooks the Moroccan dish of kefta mkaouara.

Jimmy Carr, Griff Rhys Jones, Dave Myers and Susanna Reid join Rob Brydon, David Mitchell and Lee Mack to discern unlikely fact from plausible fiction.

Radio DJ Trevor Nelson, actress Kimberley Nixon, and comedians Des Clarke and Rachel Fairburn join the best-selling author to test themselves against his famous challenges.

TV personality Alex Beresford, comedy actor Mathew Horne, Homes Under The Hammer's Martel Maxwell and comedian Chloe Petts join Richard for more quiz-based hijinks.

Rhod Gilbert, Ignacio Lopez, and Zoe Lyons join Sandi Toksvig and Alan Davies as QI goes viral.

An extended episode of the panel show. Guest host Jo Brand is joined by panellists Rylan Clark-Neal and journalist Robert Peston in taking a sideways look at the news.