I'm glad it's on youtube, but as a point of information, the bittorrent one I gave links to above is more complete and better quality and all on one file.

The William Pepper "An Act of State" discussion that TomT linked is really enlightening. A friend of King's and hired by the King family to get at the truth, attorney Pepper, after much investigation over years, held two trials, one a "mock" trial on British TV which made use of celebrated jurists, and the other a civil trial in the US. Both found, within the limits of their missions, that James Earl Ray was innocent and that the US government and military were probably guilty of the murder. Much of this is also presented in Part 6 of "Evidence of Revision", which includes parts of the Pepper talk, is a more graphic and kaleidoscopic presentation and definitely worth watching, but I think the Pepper talk by itself presents the facts of the assassination more clearly. You can also find the Pepper talk in mp3 (audio alone) and slightly truncated in two 1 hour, 10.3 mb downloads at:
http://aud1.kpfa.org/data/20080109-Wed1300.mp3
http://aud1.kpfa.org/data/20080116-Wed1300.mp3

"Evidence of Revision, Part 6" can be watched at
http://video.google.com/videoplay?docid=-2596003995912605454# , and you can also download an mp4 file of it there. WARNING: it begins with some graphic post card pictures of lynchings. You can also get a probably better avi version by bittorrent, at
http://isohunt.com/torrent_details/51812498 , which also includes the two Guns and Butter mp3's for about a 1 GB download.

Although a bit afield from the MLK subject, the whole Evidence of Revision series is well done and interesting. Parts 1-5 deal with the JFK, RFK assassinations and Jonestown, and can be downloaded directly, starting from http://www.archive.org/details/Evidence_of_Revision_1, where there are lots of comments about the series.

Haven't watched the Reprehensor links yet but looking forward to it.