We ran an HTPC setup since around 2007. First with VMC, then 7MC, eventually ended up with a WHS + MyMovies, HDHR, 7MC setup. Somewhere around 700 discs ripped to our server, plus clear-QAM tuning through Comcast (Limited Basic, but beauty HD with no extra charge). Comcast has since encrypted them though requiring boxes or Cablecards, so to hell with that.
However, right now we are using a Roku 2XS and have Netflix, Amazon Prime, and Aereo as the primary channels we are using (we also have things like Crackle, PBS, Lifetime, etc on there). Aereo gets us a pile of channels (Detroit area) and the DVR has worked well thus far.
Of course, we are on a $30 internet only promo, eventually after 18 months I think it goes to ~$60. Comcast does have a $50 6/1 tier regular price tier though, would probably downgrade to that if it came down to it.
Probably helps if you just don't give a crap about watching things and aren't picky about what's available when you do bother to watch things. Heck, I've basically given up watching sports or even caring for the most part at this point.