I learned something in the early hours of Saturday last.
It was about 12.10am, when Lou Reed picked up his guitar and showed me the chords for Sweet Jane.
There are four chords, not three, something of which I was quite unaware.
Another matter about which nobody told me is that Elvis Costello has his own talk show - Spectacle - late on a Friday night on UKTV.
How long has this been going on?! Why is it on so late?!
Anyway, last week's episode featured Lou, who really is looking terrific for an elderly gentleman.
When it comes to street cred there can be few so well endowed.
Elvis was very respectful, maybe even a little over respectful, maybe even a little sycophantic, but then maybe you would be too.
Lou said some interesting things about this and that; maybe he mentioned Andy Warhol, maybe not, maybe something about the Velvet Underground, I can't remember.
But he did give a lesson in how to play Sweet Jane, and he did sing Perfect Day with Elvis, which was quite something.
Guests to appear in the first season include Elton John (two episodes), Lou Reed, Julian Schnabel, Bill Clinton, James Taylor, Tony Bennett, the Police, Rufus Wainwright, Kris Kristofferson, Rosanne Cash, Norah Jones, John Mellencamp, Renée Fleming, Herbie Hancock, She & Him, Jenny Lewis, Jakob Dylan, Diana Krall, Smokey Robinson and Bruce Springsteen.
Quite the line-up.
The second series of Spectacle apparently begins with an interview with Bono from U2, who I like to call by a name quite similar but with a different ending.
It will also feature The Edge.
My, what a clever name, how "rock".
Why do you always wear a hat, The Edge?
Got something to hide under there, mmmm?
Embarrassed about something?
Are you, The Edge?
Anyway, probably worth staying up for most of the other episodes.
Back to Lou Reed, he made another appearance last week on the Documentary Channel on Classic Albums, a series about the very best albums recorded.
It had a good long look at Transformer, will undoubtedly be repeated, and is well worth keeping an eye out for, despite the pain that entails.
On quite another matter, if you want to be both entertained, and brush up on your local history, next Sunday's Sunday Theatre features "Waitangi - What Really Happened", at 8.30pm.
Novelist Witi Ihimaera is story consultant for what is apparently an "entertaining, colourful docu-drama about the days leading up to, and including, the signing of the treaty, revealing the incredible story and the characters behind the treaty's creation".
There will be a test on Monday.
