We cut the cable cord over a year ago. At that time, we already had Netflix and
Amazon Prime. Since then we have added Hulu Plus and HBO NOW. If it were only me, I would have kept HBO long enough to see the most recent Game of Thrones season and then cancelled. My plan was to binge everything we were interested in during the month it took to watch GOT, cancel, and then subscribe again every six months or so for a month. But we are only paying $25 for those two services which is a huge savings over cable and DH doesn't want to let it go so I don't push.
CBS has their own streaming service and we tried it but it was terrible- hanging up, buffering, and weird commercial breaks- so we cancelled after a month. That was almost a year ago so it may be better now. Instead, I purchased a season pass on Amazon for Big Brother last summer and then one for Big Bang this year. We haven't kept up with Big Bang though and agree that we're over it so I won't buy it again.
We've bought a couple of other season passes for things that we couldn't find to stream- Project Runway, American Horror Story.
As far as how to stream, we have found Apple TV to be the easiest- fastest to connect and seamless. We use our SMART TV for Amazon since it isn't on Apple. We tried a Roku stick but found it glitchy and slow compared to Apple TV so we eventually replaced it with a second Apple TV.
Overall, we've saved and mostly just really like watching what we want when we want rather than surfing hundreds of channels and not being able to find anything to watch.