On the DVD from Alpha Video and also Nostalgia Merchant, this episode runs near 25 minutes in length, the opening scene is missing and there's another scene from later on in the episode that's also missing. I found the complete episode, it's currently on You Tube and runs about 27 1/2 minutes. Those who are interested to watch can click on the link below:

https://www.youtube.com/watch?v=Mc_tXBJhdV0