I haven't kept up with the cable boxes lately, but Cox has been deploying IPTV only Contour mini's for a while. My nephew had it 3-4 years ago before they moved and switched to YTTV and BTC Fiber. Cox still has a lot of QAM boxes in the field along with some cable card TiVo's. They are doing major system upgrades in the Tulsa Metro installing brownfield fiber and high splits. I was surprised last year when they ran fiber through my neighborhood.
Windstream announced they were going to wire 95% Broken Arrow with fiber several years ago and I still haven't seen squat from them, yet Cox unannounced started boring and running fiber last year through many neighborhoods and I think has more fiber around here now than Windstream. Unfortunately, they know they are pretty much the only game in town for most of us and still nickel and dime us with data caps on fiber unless you happen to be in a neighborhood with competition from Windstream, BTC or ATT fiber.