Well of course when I was growing up in the early 70s, Saturday mornings were pretty much owned by Hanna-Barbera, ie: the opposite of funny. It didn't help that they added a laugh-track to their junk in that era.
The alternatives were the Syd and Marty Krofft shows, which far from being funny were just creepy and bizarre (and probably drug-induced), though I was mesmerized by them nonetheless.
Pretty much the only funny stuff was classic Warner Brothers (though it was often eviscerated by parent-fearing network nincompoops) and Jay Ward material like Dudley Do-Right and George of the Jungle, which was "dumb" funny; pure slapstick, lowbrow stuff. I liked Underdog, the Go-Go Gophers, Tennessee Tuxedo and Commander McBragg but it wasn't like they had me howling. Quite the opposite: Underdog's epic battle with Overcat had me biting my nails!
I tended to respond better to "adventure" cartoons like Jonny Quest or "Young Samson," or toons that walked the line between "funny animal" and superhero, like Mighty Mouse, Atom Ant, Super-Chicken and Quickdraw McGraw. By and large cartoons were curiosities to me, visually fascinating but not really a source of laughs. The shows that made me laugh were Laurel and Hardy, The Three Stooges and the Little Rascals.