Amazon Fire TV Questions?

All of this stuff is internet dependent ...so this is what I have done. I signed up for sling tv, NOT sling box, I got a roku3 for 49.99 when I prepaid for sling tv for 3 months. Sling tv is $20.00 a month, check it out slingtv.com .We then signed up for the Netflix plan with 4 screens, 11.99, we share it with 3 friends which equals to little over $3.00 monthly, friends had to prepay me for a year. They hit my credit card for 12.46 a month. My monthly internet bill is another fee. All of this is at my home and not in our camper. You can add so many free and hidden channels on the roku3. Needless to say our tv bill as went down $80.00 a month from our previous satellite bill. No local channels but then we have a tower antenna we pick up all the free over the air network channels. We love it.