The Tubridy Show was almost tolerable on Friday (28 April). It featured the wonderful Derek Mooney plugging his Mooney Goes Wild programme of the following day and the arrival of blue tits in a nest in his back garden. Derek talked sensibly and interestingly about the blue tits, about jackdaws they had filmed last year, about plastic bags, money-back-bottles and lots else. No blather, no twittering (from him anyway). Substance. Then there was Diarmuid Ferriter, the historian, talking about his new book What If, based on his radio series of the same title. Again, substance.