Vincent Price's involvement with the series is almost legendary based on his professional and gentlemanly manners and the story of his involvement has been retold over and over. Agreed to lower his daily rate to $3,000 per day from his usual $12,000 because he loved kids and thought the show was unusual Vincent Price shot almost 400 scene bits in four days He impressed the crew by his rapid professional pace. He would read the script to himself, put his head down for a few seconds and do a single take. On the first day, before the day wrapped the crew took a break and soon noticed that Vincent Price had disappeared. The producers and crew wondered if he was acting up as a famous celebrity and what that may do to the production. Soon after he reappeared, he had gone out and bought beer for the crew and spent the next few hours telling stories and answering questions about Hollywood and Cecil B. DeMille. Another day he took his picture with each crew member in the make-up room. One of the crew worked overnight to create 8x10's and Vincent Price wrote a personal note for every member of the crew.
Although most of the show was played for laughs, the regular science segments featured a genuine professor who studied under Albert Einstein and who had also been resident scientist on the original The Mickey Mouse Club (1955).
At the end of the credits for every episode, a different character would say, "The show is definitely over."
Vincent Price's monologues were done over the course of a few days, and the producers were dissatisfied with them being insufficiently scary. Price complained there was nothing he could do with his lines being so badly written. As a result of the producers conceding the point, the writers had to pull all-nighters rewriting the material to suit Price's needs.
Most of the dialogue was improvised.