Did Jim Holland ever emcee the entire show due to Cullen not making it to the theater in time?
No. On at least one occasion, Bill puked backstage right before showtime, and Don Pardo got the nod to host. I suspect that this was the March 20, 1961 episode; the NBC program card notes that Edward Haefford filled in as announcer while Don was hosting that day, and since this one episode of
Price is absolutely the only credit I can find for Edward Haefford, I'm guessing he got the job because he happened to be in the building.