You may find this intesting, DOC:
http://www.jehovahs-witness.net/watchtower/bible/126568/1/Fred-and-Ray-on-Door-to-Door-the-Truth
It was agreed among members of the writing department that preaching is a requirement incumbent upon Christians; however, there was no consensus as to HOW it should be accomplished. Some felt that the scriptural texts speaking of homes and houses were being forced into the context of a pre-conceived requirement of door-to-door preaching activity. Ray Franz made a chart twelve pages in length referencing all examples of witnessing and preaching from the Gospels and The Acts of the Apostles. He "also made a comparative chart of 27 translations and their renderings of Acts 2:46; 5:42; and 20:20." Each member of the GB received his own copy of each chart. The findings of Ray Franz's research are presented point by point, in outline form, for ease of reading and retention:
Witnessing/Preaching Activity
Gospels/Acts of the Apostles
150 SEPARATE incidents (like accounts combined)
34 of 150 incidents refer to homes/houses
4 homes only - of above - are used by WT
21 homes provided lodging
7 homes provided lodging/places to gather
2 homes to which ones healed by Jesus returned
"In all the accounts, there is not a single instance that shows Jesus or any of his apostles or disciples calling from one door to the next door or even going from one house to another house." --- Ray Franz, ISOCF, p. 220
[During the meeting [with GB] in which the above was discussed, Ray asked his uncle if, then, the texts in Acts actually mean going from one door to the next door]:
"Yes - I believe it can [not "does"] include that ... For example, on going to a home Paul might have entered in the front door, and after his discussion, he might have gone out the back door, and so he would be going from door to door." --- ibid, p. 223
Laughter broke out among some of the GB, but Fred Franz's comment was stated in all seriousness. Ray was stunned.