Harlan Ellison's ego aside, what this series has shown is that the broadcast version of this story was the better treatment. This is an interesting take on the story, but it lacks the same emotional resonance as the broadcast episode, and has some odd characterisation for Spock in particular. Edith Keeler barely features as a character (unlike in the TV episode), being little more than a plot cipher, and the substitution of a drug-crazed McCoy in the TV episode once again adds much more emotional resonance. I appreciate the opportunity to read what Harlan Ellison originally envisaged, but I'm also grateful to the producers of Star Trek for adapting and revising his original script.