The first episode, Amok Time, started off strong. There's a lot of back story on Spock and building up the relationship between Kirk>>Spock>>McCoy. However, the glaringly obviously trait of Season Two is William Shatner's ego.
I suppose it could be argued that the fairly new Captain of the Enterprise has grown into his role with greater confidence and drive than previously. However, and unfortunately, I believe that we're simply seeing the unbridled ego of William Shatner as he is constantly driving to steal the scene, over-act, and take off his shirt. Pretty much everything in Galaxy Quest is coming true before my very eyes! Suddenly I'm reminded why I didn't watch the show so much when I was younger - Kirk's a jackass.
In one episode, Kirk, Chekov, and Uhura are being held captive. Uhura is in danger of being raped by one of their captives and all Kirk can think about doing is getting into the tinfoil pants of one of the fairer alien gladiators. Jack-ass.
Don't get me wrong - I'm still enjoying these episodes regardless of the degree to which Shatner is a ham. There are plenty of gems along the way and once you learn to quit worrying and enjoy the ride, it goes just fine.
Just a note, it was rather surprising to me to see that the season finale was actually a back-door pilot for Assignment Earth. Which, unfortunately, did not get picked up. It strikes me as essentially a 1960's Warehouse 13. That's a different blog entry though.