Feelings. Whoa whoa whoa feeeelings. Just like that Morris Albert hit of the Seventies for star-crossed lovers everywhere, I lost count of the number of times I heard that word in this Alan Yentob meets Jeff Koons love-in. Or, more precisely, “feeling” singular, since Koons, one of the most bankable artists in the world, was talking about the “feeeeling” aroused when you looked at one of his art works. 

This was one of the most disturbing, terrifying and informative programmes imaginable, made more so by Dan Cruickshank’s calm demeanour as he interrogated everyone from scholars to fanatics about the actions and rationale of the Islamic State (IS) during the past two years in Iraq and Syria. These conversations were set against his own visits to the Middle East and terrifying videos of IS hammering to smithereens the contents of museums and bulldozing world-famous archaeological sites.

Rumour has it that there's a proposal floating around Hollywood to remake Nicolas Roeg's Don't Look Now, his enthralling 1973 masterpiece of love, grief and death foretold. Anyone foolish enough to contemplate such a move should be made to watch this skilful and absorbing film about Roeg's career and work. It was a vivid illustration of how a singular artist pursuing a distinctive vision goes about his business, as opposed to being a mere component in a commercial clone-factory increasingly bereft of original ideas.

Antonio Pappano, artistic director and chief conductor of the Royal Opera House, is a polymath, for he is also a brilliant and persuasive narrator of the history of music. Here he embarked on a four part history of the operatic voice, starting at the very top – or how to reach those high Cs, the Everest for the soprano.

The 1965 film The Heroes of Telemark, documenting the Allies' mission to stop the Nazis from going nuclear, is to historical accuracy what David Starkey is to tact. Or common decency. The Saboteurs however, a Norwegian/Danish/British TV co-production, seems to be keener to explore the truth behind the mission. Or at least as much of it as is known.

The hook for Alan Yentob's portrait of the 86-year-old architect Frank Gehry was the initiation and progress of an enormous new building in a rough portside area of Sydney, the Dr Chau Chak Wing Building for the business school of the University of Technology. It opened after nearly two years of construction, on time and on budget, last autumn. To commission it, the dean of the school, Ron Green, simply rang Gehry up, and Gehry replied with just four words: "I’m up for it." 

Last year's debut series of True Detective starred Matthew McConaughey and Woody Harrelson in a fascinating slice of metaphysical Southern Gothic. That's all gone now though, because this time, writer Nic Pizzolatto has shunted the action out to the West Coast, to a small fictional city in the shadow of Los Angeles called Vinci. Apparently Pizzolatto based it on real-life Vernon, California, a city infamous for its history of endemic corruption.

Drama is all about secrets revealed, discoveries unfurled. Black Work was straight into that territory from the first scene. A man and a woman sat in a car, taking the solace from each other that they couldn’t find at home. As ever in such a scenario, you promptly wondered if or when they’d be caught in the act. This was especially so given that the woman was played by Sheridan Smith, who starred in just such an adultery drama not that long ago.

Verdi's La Traviata has become one of the best-loved and most-performed works in the operatic repertoire, but this is no thanks to sections of the English press.

Sunday afternoon at Glastonbury is an odd time. For some it means carrying on carrying on, trying to wring the very last drops out of the weekend and putting off the inevitable, stomach-churning lurch that will signal a nosedive into a colossal comedown. For others, it’s simply a day to be a bit more sensible: after all there’s a long drive tomorrow… Whichever, there seems to be a clamour for the familiar, something to cling to while you take the edge off with more booze or think about A-road alternatives to avoid congestion.