I called astro to confirm about the dual cable to PVR but the guy told that no need to install additional cable.
He said the installer will "do something" so that the PVR can watch and record different channel at the same time.
I'm currently using Byond HD and I have personally connect a splitter to my existing cable so that I can have two cable: one to my Byond HD decoder and one to my other normal SD decoder.
When my inlaws come to my house, they will bring their smart card and plug in to the old decoder to watch their channel while I have wireless transmitter from HD decoder to 2nd TV in my room to watch my own channel.
The only thing is that, if I switch my HD decoder to HD channel, the old decoder will show "service currently not available" on the 1st TV.
Wonder the "do something" as claimed by astro is to install the similar splitter.

This post has been edited by Fly1968: Jun 19 2011, 09:26 AM

That what I thought so, cannot have dual tuner with only one cable, my existing cable is concealed, I do not wish to spend extra money to pull another cable, that's why I called astro to inquire about dual tuner on existing single cable.
Has anyone ever tried the splitter thing on PVR?