said by tim92078:It's not a matter of the cable card being able to handle the multiple tuners - M-cards can handle simultaneous processing of six streams (channels).
The four-stream Ceton card will work fine with ONE tuning adapter on a Motorola-based cable system - the TA will support four streams. On a Cisco-based system it's another story. A Cisco TA only handles two streams. You can hook up two Cisco TA's to a Media Center PC to get around the problem. Your new problem is getting it provisioned correctly.
Some cable companies' billing systems have a "rule" that imposes one active TA per cablecard. In order for some Ceton users to have access to SDV on all four tuners, they've had to lease a second cablecard. The second card is professionally installed in a drawer or professionally duct-taped to the side of the PC (it still has to be returned eventually, easier to find that way...).
That second card (and its fee) sometimes has to be on the account to get that second Cisco TA to work.
Sounds like more trouble than its worth and thats exactly how providers want it to be to protect their HIGHLY LUCRATIVE settop rental biz!