I moved them to the Specials. A few articles I found mentioned "Withdrawal" was released on nbc.com on January 27 and "God's Will" on February 3.

Now, I don't have a proper source, but a few watchers on various online forums were adamant that only 3 out of the 4 unaired episodes streamed on nbc.com. I think "Revelations" (originally the fourth episode) was released next. So I added it with an (somewhat unconfirmed) February 10 release.

I tentatively used the DVD release date for "Betrayal". I believe it was most likely the original US release.

Would you be so kind as to post your sources (for which episodes aired on NBC, what those episode's names were, when they aired, which episodes aired on NBC.com, what those episode's names were, and when they aired)?

I know you have no obligation, as this site isn't related to TVdb, but I really want to fix the entry on TVdb as well (I'm a trakt user and I think episode information is taken from tvdb not tmdb). I've made a post already but only with the same sources I provided here.

Withdrawal on January 27:

https://www.tvguide.com/news/jesus-lives-apparently-52903/
https://ca.ign.com/articles/2006/02/03/tv-online-2306

God's Will on February 3:

https://tvseriesfinale.com/tv-show/the-book-of-daniel-nbcs-secret-chapters/
http://www.digitalspy.com/tv/ustv/news/a28680/axed-book-of-daniel-to-close-online/

3rd episode on February 10 (no good source but here and maybe here):

https://www.broadcastingcable.com/news/nbc-resurrects-daniel-online-78684

Awesome! Thank you so much!

One last question: did you have a source for that DVD release date? I couldn't find anything

https://outfest.typepad.com/frontiers_presents_the_ou/2006/07/breaking_news_b.html
https://www.the-numbers.com/news/183930830-DVD-Releases-for-September-26-2006
https://www.amazon.com/exec/obidos/ASIN/B000GFLEKY/thenumbers