[Blubatt]

Cartoon Network UK/Europe didn't have IVC for quite a few reasons:

1. The Nature of the Channel (Obviously): The Channel is about animation and not live-action.

2. Up until October 1999 in the UK, the channel was pan-European carrying different audio tracks (the pan-European aspect of the channel was spun-off from CN UK as a separate shadow feed which I will explain later*), dubbed over or non-dubbed IVC would be rather awkward.

3. Budget: The channel was still depending on its classics archive well into the 90's although originals from both Cartoon Network Studios and Warner Bros. Animation started to fill the schedule. Also the channel didn't opt for encryption and didn't join Sky pay-TV's packages, so they didn't see a penny from Sky subscriptions in the 1990's and early 2000's.

4. Animated "IVC" powered by pre-prepared live animation technology such as Toon FM and The Big Bravo did came about after October 1999, after this date, the channel was soft-scrambled (a Videocrypt decoder was required, but no subscription needed) and only UK and Ireland viewers should in reality be the only viewers that should be phoning in.

*Viewers in parts of Europe and Africa continued to receive an alternative version of Cartoon Network UK until 2001, this was identical to Cartoon Network UK and shadowed the channel's schedule, except some shows were substituted, this included Dragon Ball Z, this was due to broadcasting rights, and was true for a bunch of new third-party shows. A fully fledged version of a Cartoon Network pan-feed was launched in 2001, which was completely separate from CN UK. I explain this in better detail in my Toonami UK article: regularcapital-audiovisual-research.fandom.com 

CNX and Toonami take me back. It's a shame that either of them didn't work. Mind you, UK Cartoon Network is limited to being a children's channel. US Cartoon Network is very much a family channel, but isn't necessarily just for kids, which gives it some qualities that allow blocks like Adult Swim and Toonami to thrive.

Talking of WBD children's channels past and present, remember UK Discovery Kids. That had a unique selling point, as it was the only kids channel, bar CBBC/Cbeebies to have some educational entertainment on it. That's something that has certainly been lost.