When this series first aired, I quickly became hooked, and it inspired me to read some of Rex Stout's Nero Wolfe mysteries.
"The Doorbell Rang" is great entertainment, and a great example of what to expect from the rest of the series. It is faithful to Stout's novel.
If you are unfamiliar with Nero Wolfe, and are looking for entertainment that is more cerebral than the car crashes and explosions that pass for entertainment today, I think you'd be satisfied.

This is the first selection in Volume One of the two-part Nero Wolfe series. I do not know why it was issued separately. For those who want a taste of the larger series, here is an inexpensive way to see Wolfe at his very best. First class in every way.