I use Roku mostly. Netflix, Amazon Prime and SlingTV creates an excellent alternative to cable.
I initially signed up for SlingTV and thought I'd run it through my HTPC, but it sucked, nearly ditched it until I tried it through the Roku. Still takes some time to get used to the quirks, but the wife and I use it a lot now. They seem to be improving daily.
Netflix is our next favorite. Love the series they run
OTA antenna has been great for local news and sports.
Overall, Roku/sling has made being a none cable subscriber pretty darn easy.
Looking forward to more sling like services popping up.