On 7 June 2005 at 17:00 UT, Radio 4 broadcasted it's weekly episode of Shoptalk.  This particular edition was called  "Pro-Am" (you may still find the BBC Radio 4 web page here). In this edition there was a section on the amateur astronomers working along professionals. Two of CMHAS's members, Martin Crow and Malcolm Gough, are interviewed.  To listen to this section of the programme please click on one of the links:

MP3 file (1.52 MB) - low quality (dial-up modems)

WMA file (4.16 MB) - high quality (broadband)

Both files can be run through Windows Media Player.  You can download to play later by right-clicking on the link (in Internet Explorer) and then selecting "Save Target As..."