This is a once in a lifetime opportunity. Shatner is 87, but still appears to beam a light from within that was the core of The Original Series. Reviews indicate it's a Hell of a show, and he has quite the endurance for audience Q&A.
TOS was not so much about space exploration, as it was about the exploration of the human condition, and a celebration of the balance point between reason, emotion, fear, and strength. It was an allegory of the civil rights, and anti-war movements of the 60's. The recurring themes were the value of life, and peace, the power of the human mind, and the realization that all intelligent life is more alike, than different.
Tix are $40, and go on sale Feb 15. It might sell out. This is by far the most expensive event I will share here, but it is a once in a lifetime value.