I see your point Critical - though I do know a few in that age range who get the "AYBS?" jokes.
Unfortunately though not all the other series relied on those transcendental jokes - and others that would fit that age range - i.e. "The Young Ones" they couldn't really air during the day because of the off color jokes and well... rather vulgarness of some aspects of the show. (Well that and some of the bands featured in there still do occasionally perform so there is the royalties issue).
I'll just admit it - I'm tired of the few times I get to see the network I get tired of of the Star Trek and movies being shown on it. At least Ramsay's Kitchen Nightmares, Doctor Who, Orphan Black and Top Gear are on.