I usually set up my internet connection w my hotspot on my phone but it hasn't connected lately ( past few weeks ) I can't figure out why . It says it has excellent signal and I pay for plenty high speed on phone . I want to buy internet so I can utilize this tv I bought ( tcl Roku) two years ago n never watch but I don't understand what to purchase . Is a roku stick internet ? How much ? Worth money and won't run out? Help