I do alot of recording and I want the newest technology so because channel master is an offshoot of DISH, Im leaning that way. I am def. considering tablo and simple tv though. I was worried about the pic quality if Tablo and simple stream only without a hard wired connection but the truth is my Roku3 streamed has a better pic than my DISH satellite compressed pic. The Roku broadcasts in 1080p. I still like the hard wire though so Im leaning CM.
The only reason to choose Tablo or Simple.TV over Channel Master DVR+ is if you need to stream to multiple Rokus. Channel Master DVR+ is a pure antenna signal, uncompressed, the others encode to .mp4 or something like that for easy streaming. Picture quality is probably fine, but definitely not as good as a straight connection from antenna to TV. I would also not underestimate the speed loss you'd see without a hardwired ethernet connection, unless you're sure you have strong Wifi at home.