My game idea was The Young Ones, apart from the title and character names, it would have no images, plots, sound etc from the original.. the stumbling block is the BBC do sell the DVD's so its still making revenue
its all just a story at the moment so i can alter it to fit new characters and title, there is a plan B lol, TYO's story is slightly stronger and would be easier to get publicity
TYO is a good choice. A really interesting choice. As I see it there is a middle ground, if the BBC say no (and I agree you should ask). This wouldn't work for any other characters, but consider:
1. TYO are anarchic.
2. TYO is cultic, so you can rely on more user knowledge - you can afford to be subtle (if the word "subtle" can be used in this context!)
3. TYO is based on a generic idea that's been used a thousand times before and since: students sharing a flat/apartment/house
Conclusion: You could make a game called "this is not the Young Ones" using lookalike characters and an irony heavy plot. You'd get the publicity, fans would get the joke, and you wouldn't have to use any of the BBC's Intellectual Property.
Another possibility is, could you get some kind of endorsement from one of the original cast? I'm no expert, but Ade Edmonson always comes across as very approachable on TV, and the others might be up for a quote? Obviously they don't own the rights, but it wouldn't harm your publicity. Just a thought.
But I agree that plan "A" should be to just ask the BBC. Maybe offer to make the game a download on their website, for the X-year anniversary or something. Or even make it an extra on the next DVD special edition?