Three episodes..
I think they were all from the Darkroom. The first one I know is.
1. The Army man episode
2. A girl thinks her neighbor down the street is a vampire. She goes to great lengths to prove it. She breaks into his house and he catches her in the middle of the night and she accuses him of being a vampire. He produces a mirror and shows her his reflection and says "see I'm not a vampire" and then proceeds to turn into a Werewolf and devour her! Really good episode. Creepy as hell!
3. Claude Akins and his wife live on a farm. A beggar comes by and asks for food. They promptly give him a bed and feed him to his hearts content. Turns out they are getting money from the government to care for an elderly uncle. Unfortunately the uncle just died a few days ago. They ask the beggar to pretend he is the uncle and they will feed him and take care of him so they can continue to collect the money. He agrees and all goes well until they get a letter from the government saying they are sending someone out to check on the health of the uncle. The beggar says no problem he can pretend to be the uncle. The husband looks at the wife and then at the beggar and says "Uncle Ned had had his legs amputated below the knees" The last scene is the husband firing up a chainsaw and walking towards the beggar!
Anyway those are the three I remember. Anyone remember them or others. Please share!