Often KJVO advocates will confuse the Textus Receptus with the Majority Text. When called on it, they will inevitably say that there are no significant differences from the two. In fact, many times, their position depends on the two of them being equal, because one of the underpinnings of KJVO is that “God has preserved His Word in the majority of Greek manuscripts.”
In actuality, there are 1,838 differences between the Majority Text and the TR (Daniel Wallace, Some Second Thoughts on the Majority Text, http://www.bible.org/page.asp?page_id=673). Although most are considered to be minor, there are some huge differences such as the omission of entire verses or phrases. Here’s two examples (the parts missing from the Majority Text are in bold):
- I John 5:7-8 For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one. And there are three that bear witness in earth, the Spirit, and the water, and the blood: and these three agree in one.
- Matthew 10:8 Heal the sick, cleanse the lepers, raise the dead, cast out demons. Freely you have received, freely give.
David Cloud, lauded King James Only defender, lists some of the differences between the TR and the MT on this page, http://www.wayoflife.org/articles/majoritytext.htm.