Well in the original video you can see its a flaming big Cat Fish! Im not sure whether Ray actually took it out of the water but in the second one Im note sure I would fancy putting my hand in its gob to get the hook out.
Most hooks will be shed by a fish after a day or two I Think, even barbed ones. Ray will tell you the facts better than me. Ive not been fishing for years but used to do a lot in Ireland and the Lake District.