Ok. Managed 10, but I know nothing about the link group. Have you really checked there's nothing you can swap between the Hiro group and the link group?

Two lines in this grid requir such detailed and obscure knowledge that is is virtually impossible for someone with excellent general knowledge to even begin, and the setter may be the only person alive with the knowledge of both these areas to be able to solve their own puzzle! The word lines were also so vague as to again make solving within 3 minutes absolutely impossible. Just not much fun, which should be the point.

utter crap

So excited at seeing a Terrahawks group that I misspelled it in the solution box :(

@Horatio I'll take the criticism for the Zelda group, but thei It-star link was a brilliant TV show! The other day I saw a wall where two groups were characters from the Banana Splits, and characters from another American Kids TV show from the '70s that I've never heard of (never broadcast over here). That annoyed me even more than the 'pacman monsters with the first letter changed' group from another wall.

@Midge, I’d be lost on your wall too but the comments are making me laugh 😂 I did the Banana Splits wall too and looked up the other American tv show. I’d never heard of it and was none the wiser once I’d seen it. I’m not convinced anyone knows it.

The Hufnpuf thing, tough hugely popular and successful in the US, it was only shown in the UK for two seasons in 1970/1 on London Weekend TV. So if one is not in the right age group or living in the right area at the time, one wouldn't have heard of it, like me. Midge , the Anderson one of yours is a point in case for me, I am too old and that one passed me by as I discovered beer and other interests.