My new Tivo Premiere was delivered yesterday, so I set it up without a cablecard. Setup was easy with the HDMI cable and my then unused wireless g adapter. Upon initial startup, there was one service pack (14.1c) that took 20+ minutes to install. After that, I was up and running. I forced another few connects to see if I would get the 14.4 software, but no luck. The 5 welcome download movies were downloaded over about 5 minutes. I activated Netflix on the box and streamed a SD picture without problem.
I'm going to give it another week before I weigh in fully, but so far, I'm digging the new Premiere!