It didn't sound odd to me, though I am British English not US English. However, googling seemed to confirm that pronounciation is normal
http://www.howjsay.com/index.php?word=tunisia
http://dictionary.cambridge.org/pronunciation/british/tunisia
have British and US English versions.
I mean, as a Brit I'm struck that Americans often say Aye-rack, where I'd say Ee-rark, or Booodist where I'd use a shorter 'o'. It's pretty moot how to say names other than in the language / form they are originally e.g. Paris or Vienna or Munich when the natives are saying Paree or Veen or Moonchen.
Best purchase ever! I use it almost daily. I love the snap of opening it. I bought it on eBay but here is the knife on Amazon:
https://www.amazon.com/dp/B0080IYV3Q/ref=cm_sw_r_cp_apa_i_BX-kFb1E4CR42
It is on US Netflix. Your best bet would be using a vpn to change locations. Sadly netflix is blocking most vpn services. I always use CyberGhost Vpn since they have a few servers that are not currently blocked.