Hey, I LIKED the video!
Especially when you consider that the play of Brockian Ultra-Cricket mainly consists of hitting people, then running away.
There is a comic version of the original three books. Whether or not you think it’s decent, I don’t know.
Check the copyright pages for the first two books, and you should find that they are in fact novelisations of the radio plays. The radio plays came first.
Yes, I knew this. Sorry if I made it seem like I thought it was the other way around. I didn’t realize the bit about the copyright, though. That’s neat, although my version (Pocket Books paperback) doesn’t have it.
Fiction or not, Adams got it right about the number 42.
I hated the guy they cast as Ford Prefect, in the video. Well, not him personally, but the way he looked and came off. I always pictured FP, the field journalist or whatever he was, as looking and acting like Hunter Thompson. Not cute and curly-headed, but tall, skinny, tan, balding and homely. Not chipper, but cynical. And definitely not wearing an Argyle sweater! What was he supposed to be, bloody Martin Smith from Croydon?
On the Dr Who connection - Douglas did write quite-a-bit for Dr Who - mostly notably a double-episode called ‘Shada’.
Due to industrial action at the BBC, filming of the programme was never completed and it never aired on TV - but it was released (with voiceovers to fill-in the gaps) on video a few years ago…
The plot will be familiar to anyone who’s read the Dirk Gently books too - in that there’s a Tardis which has dematerialised inside a university and appears to be the office of a professor… 
TTFN
JP