All submarines are limited solely by the amount of food onboard. Toward the end of a deployment, the meals get interesting (chili mac with a side of canned beets, for example). The longest that I've been submerged was about four months, followed by two quick port visits, followed by two months at sea.
A smart TV, sometimes referred to as connected TV or hybrid TV, is a television set or set-top box with integrated Internet and interactive Web 2.0 features. Smart TV is a technological convergence between computers and flatscreen television sets and set-top boxes.
Smart TVs use either a direct, wired Ethernet connection or built-in Wi-Fi to connect to a home network for Internet access. Most models today have built-in Wi-Fi, but check before you buy. For streaming movies, some sets support the latest and fastest 802.11ac Wi-Fi standard.