Liberal Hippie Chick
Your all good! Yes, the Premiere is the Series 4 and mpeg-4 ready. The two tuner Premieres 756320/746500/748xxx as you have were the last TiVo that had concurrent OTA and Cable Card tunersLike many others, I got a letter from Xfinity regarding MPEG-4 being required, I'm trying to determine if I will need to replace my Tivo.
When I display System Information, it displays that it is a "Series 4"...
It looks like a Premiere, but it's been a few years since I bought it...
I would just check the model, but I'd have to do some disassembly of my "Entertainment Center" to get a look at the back.
Update: Model number is TCD746320 ...
Thanks in advance for any help,