I use Roku all the time as well as Chromecast (which lets me view video and movies from my tablet on my tv).
A digital tv that has “smart” capabilities will probably offer access to Netflix, Hulu, and more included for about $10 per month.
If you join Amazon prime for a year ($99), you will gain access to numerous free movies. Amazon access can also be accessed via Roku. If your tv has the hdmi inputs, I would recommend the Roku 3 or the stick. Roku stick is on sale right now at Sam’s for $49.95. We use cable for Fox News only and may cancel anytime if rates go up....
If you choose to access any of the Internet movie services, be sure you have a fast enough net download speed.
If you pre-pay for 3 months of Sling TV (ESPN, Food Network, Disney, and others) you get a Roku stick for free. Sling is $15/month.