Anything with comedy and slapstick works for him, really. His favorites include: Looney Tunes, Gummi Bears, Asterix, Pat & Mat and some local classics,like the one in the pic. The Penguins of Madagascar is a more recent series he liked - the Polish dub is really unique and popular with older viewers here. I don't think he's into capeshit but he and mom did enjoy the first season of Arrow which randomly popped up on one of the channels, how odd of them.
He keeps saying that he'd rather watch children's cartoons than anything else found on TV these days. With the overabundance of reality series and soap operas, I can't blame him.