The rest for the most part... well it's a typical 70's cartoon. You have the cast bumbling into silly situations and getting out of them.
Hardly. It may have been aired in a Saturday morning slot, and thus needed to tone down the sex and violence, but otherwise the writers' approach was to tell the same kinds of stories they told in TOS, just without the budgetary and technical restrictions on sets, locations, alien designs, and the like. It was a lot more serious and adult-oriented than "a typical '70s cartoon."