I still think UKTV's biggest problem is the amount of channels it has, not what they're called. The fact that Keeping Up Appearances gets shown on a channel orientated towards factual and historical documentaries, and that one sitcom can (and does) air on Gold, Watch and Dave is a telling sign. Yes they're boosting their original programming which is making it all look a bit more sensible, but I really do think you can only rebrand a channel so many times before somebody realises it has no real purpose.
Yesterday despite being focused on entertaining history, appears to also be UKTV's gateway to their pay tv portfolio on Freeview, alas the classic GOLD sitcoms. In a similar way, Drama does that for Watch.