The History Channel has 2 of these past episodes free online. Check back as they will probably post the current season’s shows after they air. The site shows the current season's shows.
In this show they make occassional overstatements that are drawing some firmer conclusions than I might, but this is really decent information for a TV show. Some places where they state it is proof I might say it was likely. Fairly minor point though.
It is presented w/ a minimum of drama for TV.