I have Comcast and 2 Roku boxes.....However, I also have a SmarTV where I am able to use that to watch HBO GO on my tv that I do not have hooked up to my cable. I also have my HDMI cable for things on my computer that I want to watch on my TV.
I love my Roku which is why I have 2. There are some channels on Roku that are free, but the major ones usually cost monthly. Yes, Comcast rapes its customers by removing channels that werer once available on the basic channel line-up but now you have to go to yet not one but two tiers up to get the one channel that was on basic.
It is a shame that Comcast doesn't take into consideration those people who live on a fixed income...but is just as greedy as every other corporation out there. I should be able to watch tv w/cable channels under $111/month and per Comcast I do as my pkg is $89...the other $22 is in all those ridiculous taxes that our Federal/Local governments charge for our using it. I am waiting to see if the Google or Chromecasts come to my area as we need to stop this non-competetive pricing.