Here is what happened:
1) Head of BBC3 needs to make programmes aimed at different audience to BBC1 and BBC2 to keep licence and job.
2) Lenny Henry offers his unfunny friends up.
3) Head of BBC3 snaps them up, completely ignoring the fact that they are not funny.
Worst of all, it is arguably racist, as all the characters play up to bad stereotypes. If a white person did this kind of thing, there'd be uproar!
Trash.