The Hawaii episode knife looked to me to be a Gerber Gator also. As for Grylls getting paid to use a particular knife on an episode, I've wondered that myself. However, when I checked the show's web site (go to Discovery.com and you'll find a link to it) I could not find any mention or suggestion of what type of knife Grylls uses. I've also noticed that unless you are a knife nut and know a knife instantly when you catch a glimpse of it, I doubt you would be able to identify the knives Grylls has used. If knife companies were paying Grylls to use a particular knife, then wouldn't he mention it or at least show a clear and up-close view of it on the episode so the average person could know what type of knife it was? I don't know, but it doesn't look like Grylls is being paid to use a certain knife, though it certainly would be a good way for a company to advertise. Who knows how many Swiss Army Knives were sold due to Richard Dean Anderson always pulling one out on "MacGyver".