That is correct. But when people mean the ATI Digital Cable Tuner or ATI DCT they usually mean the CableCARD tuner: http://www.amd.com/us/products/pctv/tv-wonder-tuners/Pages/digital-cable-tuner.aspx
HTPC Setup:
Windows 7 home premium
Ahanix MCE303 HTPC case with VFD and remote (IRTrans)
Gigabyte GA-H55M-S2H mobo
Intel Core i3 530
4GB RAM
2TB Seagate 5900RPM drive
LiteOn BD-ROM
AVermedia AVerTV HD duet
2 x combo PCI tuner cards (ViXS Pure TV-U 48A3)
HDHomeRun dual tuner
Ceton InfiniTV 4 MOCUR with Motorola M-Card