It's on the main documentry, there's a bit at the start about what Grant Naylor did between series 6 and 7 (there's a couple of clips from the 10%ers, a sitcom they made for Carlton, as well).
Despite not liking Red Dwarf, I was quite fond of The 10%ers, as it happens, although nobody else ever seemed to watch it. Along with Brighton Belles, it was the only spin-off from the Comedy Playhouse series Carlton did in its early months, with a full series following in 1994, although Grant and Naylor had split up by then and Doug Naylor wrote it with other writers instead. Then a second series followed over two years later in 1996, initially pre-watershed (the first series had been post-watershed) but after just two weeks it was dumped to after News at Ten. I remember reading at the time that none of the rest of the ITV network particularly wanted a second series because the first hadn't done much at all, but Carlton insisted, so it more or less got commissioned for political reasons. And clearly the second the ratings came in all the other regions demanded it be shunted.
It wasn't all that bad, Clive Francis who played the lead role was a very funny performer, quite manic and likeable, and it was quite pleasingly anarchic. Possibly there were a few too many media in-jokes for it to really catch on, but I always remember the exchange "Bad news!"/"What, they've discovered a fifth McGann brother?" which made me chuckle.
As the Radio Times Comedy Guide reminds me, exactly one week before that second series, there was a pilot for a very similar sitcom called, of all things, The Office. This was written by Steven Moffatt and starred Robert Lindsey and I remember reading on Teletext that when they had a preview for the TV critics, they were all absolutely wetting themselves and demanding they showed it again when it ended, and they gave it a glowing review, they said it was brilliant. It was pretty good, but nobody seemed to notice it and that was the end of that.
In those days it was hard to get comedy away on ITV, they didn't have many slots for it so everything was dumped at 8.30 regardless of its suitability. I watched them all, mind, because I was going through a phase of masochistically watching every new comedy show on telly.