I believe that is the US debut of the series, being shown after the Olympics and not a continuation of the series or more episodes being shown in Canada. I'm not even sure there are more SM-10days episodes beyond these 4.
In other news from Les's FB page "
last week shot a new pilot for a Survivorman series called - wait for it - 'Survivorman and Son' - thats right I said (and SON)". Yep, it looks like he is bringing the family into the show. I expect an abbreviated series - probably 4 episodes or so. I don't know how old his kids are but I am guessing late teens.