David Hockney: The Art of Seeing, BBC Two

It’s hard to imagine a bad documentary on David Hockney. Hockney always gives good Hockney: the quotable sentences come thick and fast; his enthusiasm for his craft is never less than exhilarating, and like that other great British artist of his generation – Francis Bacon – he’s always been better at getting to the crux of why and how he makes pictures than any of his commentators have. And yet… But we’ll get to the “and yet” in a moment.

In last night’s Culture Show Special, the amicable Yorkshireman was gently quizzed by his friend, the journalist and broadcaster Andrew Marr. But what added a further dimension to proceedings was the fact that Marr himself is a painter. So rather than just go over ground covered countless times before by many previous interrogators, Marr refreshingly focused on the work itself. There was a nice moment, for example, when Marr homed in on a canvas that wasn’t meant to be judged in isolation (it was part of a huge landscape being reassembled on a wall of The Royal Academy) to point out, quite rightly in my judgment, that it was striking enough to be assessed as a work of art in its own right. I suspect few non-painting art critics would have had the instinct or nerve to make such a call.

Looking is what Hockney has always done best, these days rising at four in the morning to get in as much looking as possible

But the best moment of the programme came towards the end when Marr announced it was time for him and Hockney to shut up so that we, the viewers, could contemplate one of the artist’s recent multiple-camera landscape films in unprecedented silence. Even though 30 seconds is no time at all, in 21^st-century telly terms it’s a lifetime. So it was a bold gesture that served its purpose, hinting at how immersive and hypnotic these neo-cubist experiments in optical perception are. (Though I do urge you to go and see them at the RA for the full widesceen, multiple-screen effect.)

Less gripping - at least visually - was the grey and beige Bridlington woodland through which Marr and Hockney seemed to saunter for hours. Its drabness bore little relation to the stained-glass intensity of the countless paintings and iPad drawings it has inspired. Hockney’s explanation for this disjuncture was twofold. Firstly, 30 years spent in LA – a place he once described as "perfect" because it had the energy of America but the climate of the Mediterranean – had heightened his colour awareness. And secondly, and perhaps more pertinently because it reflects Hockey’s robust work ethic, “You really have to look.”  For looking is what Hockney has always done best, these days rising at four in the morning to get in as much looking as possible.

The other thing Hockney has always been good at is talking. So the main body of last night’s Culture Show consisted of Marr listening to Hockney as they strolled around the Royal Academy exhibition, Marr listening to Hockney in the countryside which inspired much of the work in the exhibition, and Marr listening to Hockney for a BBC radio interview a few months ago. The only problem was that I didn’t feel I knew the man any better at the end of this hour than I did at the beginning. Because Hockney appears to give so much his interviews, it’s easy to overlook what he actually holds back.