"And the Children Shall Lead" and "The Savage Curtain" do not work for me, or they've worn out their welcome after decades of settling for them, but otherwise I find almost the whole third year highly watchable.
My favorite third season eps (in production order):
- "Spock's Brain"
- "The Paradise Syndrome"
- "Elaan of Troyius"
- "The Lights of Zetar"
- "Requiem for Methuselah"
They all happen to have female guest stars I find highly attractive. Also, they all benefit greatly
from their music scores. The first three have their own original scores and the final two are tracked, but they're all a pleasure for me.