Leave It To Beaver was one of the greatest shows ever. A little trivia for you. The house they used for the opening shot of Marcus Welby M.D, was the same house they used for Leave It To Beaver.
Leave It To Beaver FAQ
18B) What about the LITB house?
The house on 211 Pine was first seen in the Humphrey Bogart movie The Desperate Hours (1955). All the exterior shots of the house are the same with one exception. Where there is a breezeway between the garage and house on LITB, it is enclosed in the movie and is the Laundry room / Service Room. Inside the house is changed slightly. Wards Den is the Dining Room and the Living Room is sunken. The Dining Room on LITB is now the den. The foyer stairs location is reversed. Outside though it is the same house. The same house was used for Marcus Welby after the series ended