computer/tv/phone people

[uh-oh]

yo so i'm killing my cable/internet

i have a note 4, and like a 52 inch cheap sanyo tv

i have unlimited data on my phone, and figured i could use it as a hotspot, turns out tho i have to pay extra for hotspot things, so i can't use the net like that

i'm not too worried about having the internet on my computer

i'm trying to figure out tho, what is the best way to just bring whats on my phone screen to my tv screen

so i can stream stuff on my phone data and watch it on my tv?

i've seen different cords, and chromecast things? but i don't know how any of that shit works

so what should i purchase