I used to be a massive fan of 'Rock Profile' back in the days of UKPLAY...and when the Radio 4 series started I thought it was great - it was the same sort of 'Rock Profile' humour...the TV series sneaked on to BBC 3 and it was still relatively fresh, but not as good as the radio series I thought...That's when I lost interest.
The radio show was great - There was obviously a lot more emphasis on the writing, and relying less on the physical humour, which totally took over the real heart of the comedy.
I try explaining to people who (still) like it that the radio series is 100 times better - but I think most people aren't interested in hearing the words, rather to look at the god damn pictures.