Normally I'm able to understand the disagreeing poster's POV, but I'm having trouble seeing where you're coming from with this one.
I think you're reading too much into it. The fact that some of the channels have a logo that fits into a geometric shape is no big deal and certainly not a linking device between them.
Putting the issue into perspective, I would say you have overlooked or downplayed the facts here. 'Geometric shape' could account for any manner of square or triangle and so forth. That is not the case here - it's not even remotely that broad. All five logos mentioned place the names inside circles, fact.
And then we come to this: if the circle was not intended to be a linking device, it, then, has no functional purpose - and so you imply it was mere coincidence that they chose a circle five times respectively for five logos. I must confess, I do find such a coincidence difficult to believe!
The channels have different names and styles because UKTV have realised that they don't all have to be named 'UKTV <insert genre>' they obviously don't want them to be an obvious family any more... and there's no reason that they should be
True, the rebranded channel names collectively are not linked by an exact matching word anymore, but I have already stated they
are
linked, by use of a single word for each logo. Thus, in being linked this way, it becomes apparent this was to make them collectively share a common trait - in essence, being a family. When it comes to cross-promotion, you cannot deny it has its advantages.
You say they 'obviously' don't want them to be an 'obvious' family anymore - but if that was case, surely they would not have bothered with the single-word connection, made them entirely disparate in name and logo traits and thus severed the 'family' ties altogether? But they have not done that.
To take the single-word name approach with a view to it 'not being an obvious family' renders the whole idea pointless, does it not? The whole point of a channel family is to have a clear and consistent trait(s) across the board, otherwise they cease to be a family.
So your statement, and the idea itself of an un-obvious family, is rather contradictory. If it genuinely wasn't to be obvious, the idea would then have to be far more disparate across channels - subsequently, people wouldn't make the connection because it wouldn't be obvious
enough
, and to add to that, cross-promotion wouldn't be complimentary. I don't know about you, but comparatively I cannot see the merit in any of that - and thus, I don't think that's what UKTV were aiming for at all!