On Monday's Last Word on Today FM, the two were discussing Led Zeppelin's planned 'reunion' concert in London in November.

Something like 25 million people have reportedly applied for tickets for this, which just goes to show how far you can get by playing fast and loose with the term 'reunion'. Jimmy Page and Robert Plant began reuniting years ago, so the return of John Paul Jones makes this version of Led Zeppelin only one quarter closer to the real thing, since John Bonham (or "John Bless Him", as BP Fallon kept calling him) is still dead, and giving no quarter.

Nevertheless, Fallon said it was "the biggest show on earth, ever", and compared it to "Elvis climbing out of the grave". He said, in that peculiarly anachronistic lingo of his, that this was as near as any of us could get to hearing Led Zeppelin live "until we all go and visit Old Shep".

This isn't even true, as when you die you can really only hope to hear John Bless Him playing a drum solo while he waits for the other three to burn themselves out.

As everybody can't help but know by now, BP Fallon spent seven years working with Led Zeppelin. He was their PR man and their "entertainments manager". Cooper wanted to know what that was like, but the more explicit Fallon threatened to become, the more Cooper began to sound as if he was nudging and winking (and the more his listeners found themselves fighting nausea. ) "When one looks back on those frolics it is almost shocking what happened, " said Fallon. "It was magnificent. . . It was a different world. There was no Aids, and the supplicants were willing and eager. . .

and the music was magnificent."

"We'd better talk about the music, " said Cooper, with an unnatural laugh and an almost audible blush. Later, though, he wanted to return to the subject of drugs and "debauched" orgies. "None of the orgies were at all debauched, they were completely civilised, " said Fallon. Someone pass the anti-emetics.

When they did get to discussing the music, Cooper asked what it is about Led Zeppelin that gives them such lingering appeal, so that teenagers today are still discovering a taste for them. Fallon compared this phenomenon to the timelessness of classical music.

"It doesn't have to be a song Beethoven wrote last Friday. . . . which is a bit unlikely seeing as the cat's brown bread, " he said. The cat! Brown bread! Who else but BP Fallon could unite a 1950s' New York jazz bar with a scene from Eastenders in one sentence? It's all happening on the Last Word.

Fans of vintage British comedy should know that BBC 7 is broadcasting episodes of The Goon Show every Monday, and of Hancock's Half Hour every Tuesday. They air at the outrageous hour of 8am, but are repeated at noon and again at 7pm.

Anyway, as BBC 7 is a digital/internet station, you'll probably have to listen on the website, where the episodes can be downloaded at whatever time it suits you to consider the question of whether or not comedy dates, and why, and by how much.