For $39.99 you can't beat a Firestick. The only thing you'll regret is not having bought one sooner. Plug and Play. If you don't have WiFi then you'll need the ethernet adapter. No contracts, pick and choose whatever premium subscription you want, cancel anytime, plus almost everything has a free trial. Showtime's is 30 days. You can hop from one free trial to another as each one ends, which will keep you busy for months.I gave up Directv after 1 week of using my Firestick. Why pay for all those lame channels you never watch anyway, (mtv, bet, animal planet, nickelodeon, byu, qvc, hsn, bloomberg, cspan, link, cooking, cartoon, nasa, ion, galavision, etc.) If you want local channels, get an antenna (yes, they ALL broadcast in HD.) Every news/weather channel is free online or with an app.
If you've bought an Apple iphone/ipad/macbook recently you've already got 1 year of +AppleTV for free. Check out, "For All Mankind" series. I can't wait for the next season to start.
If you have Amazon Prime, their Prime video is included and they run specials every now and then, such as Starz for 99¢ per month for 2 months. Just don't get Showtime through them but directly from Showtime, for the 30 day free trail. If you go through Amazon it's only a week or so.