I loved Going Live! on the BBC, and especially What's Up Doc? on ITV for its sheer WTFness (anyone else remember the horrific pumpkin - headed hairdresser that appeared with the Tubular Bells soundtrack?!)
I loved the cartoons too (although some were after school rather than Saturday morning) - Dungeons & Dragons, Ulysses 31, Batman, Muppet Babies, Gummi Bears, Mysterious Cities of Gold, Dogtanian, Transformers, Joyce and the Wheeled Warriors, Jem, Teenage Mutant Hero Turtle s (as they were in the UK). And puppet shows like Starfleet and Terrahawks.
Not the Raccoons though, that was shit.
I also fondly remember watching stuff on a weekday like Knightmare (wishing that I was old enough to go on the show) and Fun house (being annoyed at how shit the contestants were, especially at the go Karting bit), and waiting for the BBC drama that was on before Neighbours - stuff like Moondial, Alien in the Family, and that creepy one with cultists in gold masks that wanted to seize the heroes unborn sibling. Ooh, and Round the Twist. All followed by Neighbours then Home & Away!
Kids might have their own channels now, but they don't have the broom cupboard. BAH! BAH, I SAY!